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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 68301. |
Question answered of heridty and evolution ch in biology |
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| 68302. |
Textual question answer of heridty and evolution ch |
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| 68303. |
Question answered of heridty and evolution |
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Answer» It is given in this app... Okk Ask the particular question |
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| 68304. |
What is a balance chemical equation |
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Answer» A chemical equation that has equal number of atoms in reactant side as well as product side, is called a balanced chemical equation... if the atomic number of reactant and product are equally balanced type of chemical equations are called balanced chemical equations...hope u can understand A balanced chemical equation is an equation that have equal numbers of each type of atom on both sides of the arrow......hope this helps uhh? |
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| 68305. |
How to draw dot structure of Hcl molecule?? |
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Answer» Cl will share one electron with H. Sorry unable to upload image here. |
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| 68306. |
CaSO.12HO+112HOCaSO.2HO42242(PlasterofParis)Gypsum) |
| Answer» Your way of writing the question is really very strange... I am unable to understand what you have written here... I don\'t think your chemical formula of gypsum and plaster of paris is correct... Please write your questions carefully... | |
| 68307. |
Why Mendel chose pea plant for his experiment |
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Answer» Gregor\xa0Mendel\xa0conducted hybridization\xa0experiments\xa0on around 29,000\xa0pea plants.\xa0Peas\xa0were an ideal choice for\xa0Mendel\xa0to use because they had easily observable traits there were 7 of which he could manipulate. ... He took years of breeding constant family lines to perfect the original constant traits. The reason for the selection of pea plants for the genetic experiments are\tEasy to grow in the garden.\tThe flowers of pea plants are hermaphrodite, i.e flowers have bisexual characteristics.\tEasy to obtain pure breed plant through self-fertilization\tThe generation time of pea plants is less.\t\tThey have excellent disease resistance and have an optimal rate of survival.\t Mendal choose pea plant because they grow up within short duration of time and so that he can study more about generations quickly.They were also easily available. Also pea plants have many different characteristics like dwarfness, tallness , different colours of pea,etc. |
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| 68308. |
Does concave mirror forms virtual object? |
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Answer» Offcourse yes.... Concave mirror also produces virtual and erect images......put an object between focus point and pole and you will observe an image behind the mirror which is both virtual and erect.? No Convex\xa0mirrors\xa0always produce a virtual, erect and diminished image and the decrease in size of image depends on the position of the object in front of the mirror.Plane\xa0Mirrors\xa0always produce a virtual and erect image having the same size as that of the object irrespective of the position of object.Concave\xa0mirrors\xa0produce real and virtual, erect and inverted, diminished, same-sized and magnified image depending upon the position of the object on the principal axis. But the concave mirror forms a virtual image only when the object is placed between the Focus and the pole of the mirror but the image is magnified (enlarged).\xa0 Not object it should be image Yes |
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| 68309. |
What is gold leaf experiment |
| Answer» Vacuum tube experiments concluded that electrons, protons and neutrons are the fundamental particles of all atoms. Many hypothesis and experiments were proposed to know the distribution of these fundamental particles inside the atom. Thomson suggested a model of the spherical atom with positive charge distributed over the entire volume and electrons placed on it like plums on a cake. Rutherford tried to determine the structure of the atom experimentally.Rutherford in 1911, carried out an experiment called ‘Gold foil experiment’ and could conclude the nature of an atom and the position of the protons present in the atom decisively. He also proposed the position and behaviour of electrons.\xa0They bombarded fragile sheets of gold foil with fast-moving\xa0alpha particles. Alpha particles, a type of natural radioactive particle, are positively charged particles with a mass about four times that of a hydrogen atom.Observation of the experimentMost of the alpha particles were indeed undeflected, a tiny percentage (about 1 in 8000 particles) bounced off the gold foil at extensive angles. Some were even redirected back toward the source.Conclusion of the experimentHe concluded that all the positive charge and the majority of the mass of the atom must be concentrated in a minimal space in the atom’s interior, which he called the nucleus. The nucleus is the tiny, dense, central core of the atom and is composed of protons and neutrons. | |
| 68310. |
Archamadis principle |
| Answer» Archimedes’ principle states that: “The upward buoyant force that is exerted on a body immersed in a fluid, whether partially or fully submerged, is equal to the weight of the fluid that the body displaces and acts in the upward direction at the center of mass of the displaced fluid”. | |
| 68311. |
9th |
| Answer» What\'s your question bro | |
| 68312. |
Mettalic oxide is basic in nature explain with example |
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Answer» Metal oxides are basic in nature because they react with water to form bases. For ex - Na2O react with water to form NaOH Metal oxides\xa0are\xa0basic in nature\xa0because they react with water to form bases. Answer of questionm |
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| 68313. |
Write the number of vertical column in the periodic table. what are these columns called? |
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Answer» 18Elements in the modern\xa0periodic table\xa0are arranged in 7 periods and 18 groups. The\xa0number of vertical columns\xa0in the modern\xa0periodic table\xa0is 18.\xa0Vertical columns\xa0in the\xa0table\xa0are\xa0called\xa0groups. The\xa0number of vertical columbs\xa0in the modern\xa0periodic table is 18. And vertical column in the table are called groups |
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| 68314. |
Brine is an |
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Answer» Aqaous NaCl Brine is an solution of Nacl + H20 Brine, salt water, particularly a highly concentrated water solution of common salt (sodium chloride). Natural brines occur underground, in salt lakes, or as seawater and are commercially important sources of common salt and other salts, such as chlorides and sulfates of magnesium and potassium. Brine, salt water, particularly a highly concentrated water solution of common salt (sodium chloride). Natural brines occur underground, in salt lakes, or as seawater and are commercially important sources of common salt and other salts, such as chlorides and sulfates of magnesium and potassium. |
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| 68315. |
Secondary sexual characters in male humans consists of |
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Answer» ***\xa0DeterminationFor\xa0males,\xa0secondary characteristics\xa0include facial and chest hair, increased body hair, pelvic build (lack of rounded hips), upper body muscular build, and the ability to generate muscle mass at a faster rate than the female. Secondary Sexual Characters in males:(i) Appearance of facial hair (beard and moustache)(ii) Pubic hair grows over the reproductive organs.(iii) Pitch of the voice change(iv) Increased development of musculature. |
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| 68316. |
define incident ray,refracted ray and emergent ray through a triangular glass prism |
| Answer» When light ray incident on the glass surface it gets refracted with some particular angle this is call angle of Refraction this can be found by using Snell law. When light ray comes out from glass it is called emergent ray and at this point I point it also get refracted by same angle as it was initially refracted. | |
| 68317. |
What is the effect of biomagnification? ans in steps pls |
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Answer» Biomagnification can be defined as the rise or increase in the contaminated substances caused by the intoxicating environment. The contaminants might be heavy metals such as mercury, arsenic, and pesticides such as polychlorinated biphenyls and DDT.These substances are taken up by the organisms through the food they consume. When the organisms in the higher food chain feed on the organisms in the lower food chain containing these toxins, these toxins get accumulated in the higher organisms. Following are the effects of biomagnification on living organisms and the environment:Impact on Human HealthBiomagnification makes humans more prone to cancer, kidney problems, liver failure, birth defects, respiratory disorders, and heart diseases.Effects on Reproduction and Development of Marine CreaturesThe toxic chemicals accumulate in the important organs of aquatic organisms that affect their\xa0reproduction\xa0and development processes.For eg., the shells of the eggs of the sea-birds are very thin that might get crushed by the birds themselves during incubation. The toxic chemicals, mercury and selenium destroy the reproductive organs of aquatic creatures.Destruction of Coral ReefsCyanide that is used in leaching gold and fishing is the main cause of the destruction of coral reefs. Coral reefs are the dwelling and feeding grounds for many sea creatures. Their destruction affects the lives of many aquatic animals.Disruption of Food ChainThe chemicals and toxins which are released into the water bodies disrupt the food chain. The small organisms absorb the toxins which are eaten up by larger animals. These toxins, thus, get accumulated in the higher level of organisms. |
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| 68318. |
What is the height of alimentary cannel |
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Answer» 9m 9m The alimentary canal in human beings extends from mouth to ****. In human beings, it measures about 8 to 10 meters in length. Gastro-intestinal tract can be divided into upper tract and lower tract. Alimentary canal is the long tube of organs and it is about 8.6 to 8.9m long. |
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| 68319. |
Which is the most basic event of reproduction? |
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Answer» Reproduction\xa0takes place through a\xa0basic event\xa0called fertilization. During fertilization fusion of male and female gamete takes place, which forms the zygote. After that zygote undergo the mitotic division which leads to the formation of new organism.\xa0Reproduction\xa0takes by two ways sexual and asexual. Reproduction at its most basic level\xa0involves making copies of the blueprints of body design. During reproduction, the information for inheritance of characteristics is passed on from the parents to the offsprings in the form of DNA.\xa0DNA in the cell nucleus is the information. Hence DNA copying is the basic event in reproduction. |
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| 68320. |
Long form of periodic table |
| Answer» The modern or long form of the periodic table is based on the modern periodic law. The table is the arrangement of elements in increasing order of their atomic numbers. The modern periodic table is the present form of the periodic table. And it consists of 18 vertical columns and 7 horizontal rows.\xa0Modern Periodic TableGroups in the Modern Periodic Table\t\tGroups are the vertical columns in the modern or long form of the periodic table.\t\t\tThere are 18 groups in the periodic table.\t\t\tThese groups\xa0are numbered\xa0from 1 to 18.\t\t\tEach group consists of elements having the same outer shell electronic configuration.\t | |
| 68322. |
Mendeleevs periodic law and its classification |
| Answer» Dmitri Ivanovich Mendeleev, a Russian scientist arranged the elements in increasing order of their relative atomic masses. He was honoured with Noble prize in 1906 for his Periodic Table.\xa0Mendeleev’s Periodic Law states that the properties of elements are the periodic function of their relative atomic masses.\xa0Mendeleev arranged all 63 elements; which were discovered till his time; in the order of their increasing relative atomic masses in a tabular form. It is known as Mendeleev’s Periodic Table. He divided the table in eight columns and seven rows. The columns are known as groups and rows are known as periods. | |
| 68323. |
What importance of the DNA copying reproduction |
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Answer» The importance of DNA? copying in reproduction is that dna copy gave a great variation in living organism...to survive in adverse Condition..... DNA determines the body design of an individual. The\xa0DNA\xa0that gets transferred from parents to offsprings makes them look similar.\xa0DNA copying\xa0is\xa0important\xa0for\xa0reproduction. Additional\xa0copies\xa0of\xa0DNA\xa0are made during\xa0replication\xa0which is necessary for the new cells formed after cell division. Importance of DNA copying in reproduction is that the characteristics of the parent organism are transmitted to its offsprings and at the same time some occasional variation are also produced in the offsprings. DNA determines the body design of an individual. The DNA that gets transferred from parents to offsprings makes them look similar. DNA copying is important for reproduction. Additional copies of DNA are made during replication which is necessary for the new cells formed after cell division. Moreover, some minor alterations during DNA replication are responsible for bringing variations in the long run. |
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| 68324. |
Why non metals don\'t react with water |
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Answer» Liquid\xa0water\xa0is held together by hydrogen bonds. (Liquid\xa0water\xa0has fewer hydrogen bonds than ice.) Oils and fats\xa0not\xa0have any polar part and so for them to dissolve in\xa0water\xa0they would have to break some of\xa0water\'shydrogen bonds.\xa0Water\xa0will\xa0not\xa0do this so the oil is forced to stay separate from the\xa0water. Non metals don\'t react with metal because non metals have less number of hydrogen ions than metals. |
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| 68325. |
Write an activity to find the focal length of a concave mirror |
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Answer» can you send me the recodings o determine focal length of a given concave mirror:Materials RequiredA concave mirror, a measuring scale, a screen a mirror holder and mirror stand.Procedure\tSelect a distant object from the laboratory window (distance should be more than 50 ft).\tFix the concave mirror on the mirror stand placed on the table, facing the distant object.\tPlace the screen in front of the reflecting surface of the mirror. Move the screen back and forth until a clear, sharp image of the distant object is obtained on the screen.\tMeasure the distance between the concave mirror and the screen with a metre scale. This distance is the focal length of the given concave mirror. Record the focal length.\tRepeat the above procedure twice and record the readings. Take three readings and calculate the average focal length.\t |
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| 68326. |
State Mendeleev\'s periodic law. Why did he leave gaps in his periodic table? |
| Answer» Mendeleev\'s periodic table is\xa0an arrangement of the elements that group similar elements together. He left\xa0blank spaces\xa0for the undiscovered elements (atomic masses, element: 44, scandium; 68, gallium; 72, germanium; & 100, technetium) so that certain elements can be grouped together. | |
| 68327. |
Difference between non biotic digrable |
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Answer» Difference Between\xa0Biodegradable and\xa0Non-Biodegradable Substances...,...............,.......,.....................Biodegradable substances are those that degrades or break down naturally.\xa0,..............,............,............ .....Non-biodegradable substances are those that do not degrade easily...... These terms itself defines the ability of the substances which are\xa0degradable\xa0or not. \tBiodegradable waste\xa0\xa0Non-biodegradable waste\xa0Those which can be easily degraded by the decomposers into substances that go into soil and are harmless to the environment.\xa0\xa0Those which cannot be degraded by the decomposers and thus remain in the environment causing pollution.\xa0\xa0They are natural wastes.\xa0They are synthetic wastes.\xa0\xa0Examples- vegetables wastes, animal excreta\xa0Examples- plastic, polythene\t |
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| 68328. |
Definition of tropical level |
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Answer» The trophic level of an organism is the position it occupies in a food web. A food chain is a succession of organisms that eat other organisms and may, in turn, be eaten themselves. The trophic level of an organism is the number of steps it is from the start of the chain Ayushi it will be trophic not tropical The trophic level is the position an organism occupies in the food chain. The first trophic level known as the base of the ecosystem has the highest energy concentration which is transferred to the organisms at different trophic levels. Following are the different levels of an ecosystem:\tProducers:\xa0Plants and other autotrophs are known as producers. They prepare their own food using sunlight and carbon dioxide by the process of photosynthesis. This energy is transferred to the organisms that feed on the producers.\tPrimary Consumers:\xa0This is the second trophic level which includes all the herbivores. Animals such as cows, buffaloes, deer, few insects cannot prepare their food and rely on plants and natural products for nutrition.\xa0\tSecondary Consumers:\xa0A few organisms such as rats, foxes, fish belong to the third trophic level. These are secondary consumers and derive their nutrition from the primary consumers.\xa0\tTertiary Consumers:\xa0This is the fourth trophic level that includes all the carnivores and omnivores.\xa0\tApex Predators:\xa0This is the final trophic level of the ecosystem. The animals belonging to this trophic level have no predators of their own. Eagles, lions, anacondas, belong to this trophic level. |
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| 68329. |
How ozone is made |
| Answer» In atmosphere, some OXYGEN (O2) absorbed energy from ultraviolet (UV) ray and split to for single oxygen atoms. This oxygen combined with remaining oxygen and form ozone (O3) molecule. | |
| 68330. |
How can we stop ozone |
| Answer» Following are some points that would help in preventing this problem at a global level:Avoid Using Pesticides:\xa0Natural methods should be implemented to get rid of pests and weeds instead of using chemicals. One can use eco-friendly chemicals to remove the pests or remove the weeds manually.Minimize the Use of Vehicles: The vehicles emit a large amount of\xa0greenhouse gases\xa0that lead to global warming as well as ozone depletion. Therefore, the use of vehicles should be minimized as much as possible.Use Eco-friendly Cleaning Products:\xa0Most of the cleaning products have chlorine and bromine releasing chemicals that find a way into the atmosphere and affect the ozone layer. These should be substituted with natural products to protect the environment.Use of Nitrous Oxide should be Prohibited:\xa0The government should take actions and prohibit the use of harmful nitrous oxide that is adversely affecting the ozone layer. People should be made aware of the harmful effects of nitrous oxide and the products emitting the gas so that its use is minimized at the individual level as well. | |
| 68331. |
How the number of electron is equal to period pls explain with examples |
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Answer» Because the n.c.e.r.t has not given the line of quantum number but thank you for the link https://youtu.be/TIxiDESxc0I ☝️☝️☝️☝️☝️Chemistry 3.1 Introduction to the Periodic Table – YouTube...................,...........................https://courses.lumenlearning.com/boundless-chemistry/chapter/the-periodic-table/ Can you don\'t tell according to n.c.e.r.t lines which can be easier for understanding ANSWER=.................Prediction of Period\xa0⟶\xa0In the electronic configuration of an atom, the principal quantum number (n) of the valence electrons represents the period of an element..... .. .. . ... ... ...Prediction of Block\xa0⟶\xa0The orbital out of\xa0s,p,d\xa0and\xa0f\xa0which receives the last electron represents the block of an element.............................. .......................Prediction of Group\xa0⟶\xa0The group prediction occurs with the help of block as:-...............................................(1) For s block: Group Number = Number of valence\xa0e− .........................(2) For d block: Group Number = Number of\xa0e−\xa0in\xa0(n−1)d\xa0subshell + number ............................ of\xa0e−\xa0in\xa0ns\xa0subshell ..... ... .(3) For p block: Group Number = Number of valence\xa0e−+10 ...... B.....(4) For f-block: Group Number =\xa03\xa0(always) ........ For example for chlorine with\xa0Z=17 ....... ...Electronic configuration =\xa01s22s22p63s23p5 .. ....Since the last\xa0e−\xa0enters in\xa0p\xa0- subshell: ...... ...(i)\xa0∴\xa0Block will be\xa0′p′ . ......(ii) For group we have element in\xa0p-block ... .. ∴\xa0Group number =\xa010+\xa0Valence\xa0e−\xa0in\xa0s\xa0subshell\xa0+\xa0Valence\xa0e−\xa0in\xa0p\xa0subshell . ... . . . Group Number =\xa010+2+5=17 . . (iii) For period . .The quantum number of valence\xa0e−=3 .. .∴\xa0Period number =\xa03 |
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| 68332. |
List any two observation when ferrous sulphate is heated in dry test tube ? |
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Answer» Iota Answer: When\xa0ferrous sulphate is heated\xa0colour changes from light green to reddish brown. On further\xa0heating,\xa0ferrous sulphate\xa0decomposes to form\xa0ferric\xa0oxide (Fe2O3), sulphur dioxide (SO2) and sulphur trioxide (SO3). \tThe ferrous sulphate crystals are light green in colour.\tThe gas emitted has the characteristic odour of burning sulphur.\tOn heating, the colour changes from light green to white.\tOn further heating, the white substance changes to dark brown solid. The colour of the subtance is change into brown from white.A pungent smell of burning sulfur is produced. |
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| 68333. |
Explain briefly how ozone layer is getting depleted? |
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Answer» It is depleted by the pollution which caused an hole in ozone layer known as ozone hole.It is caused by following gases:-1. CFCs2.sulphate aerohol Iora Ozone layer depletion:\tDepletion in the ozone layer of the atmosphere is called ozone depletion.\tThe ozone layer or the ozone shield called the ozonosphere is present in the stratosphere at an altitude of 23–25 km over the equator and at a slightly lower altitude of 11–16 km over the poles.\tThe ozone layer functions as a shield against strong UV radiations and protects the Earth from these harmful radiations. |
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| 68334. |
What is hallogen ? Explain in brief. |
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Answer» 17th group\'s elements called halogens Halogens are nonmetals. At room temperature, fluorine and chlorine are gases and bromine is a liquid. Iodine and astatine are solids. Halogens are very reactive, the reactivity decreases from fluorine to astatine. Halogens do not exist in the elemental form in nature. Astatine isotopes are radioactive with short half-lives.The halogens are a group in the periodic table consisting of five chemically related elements flourine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At). Elements belong to 17 group |
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| 68335. |
Where is test series |
| Answer» | |
| 68336. |
Metalic and non metalic properties |
| Answer» Metallic\xa0character refers to the level of reactivity of a metal.\xa0Non-metallic\xa0character relates to the tendency to accept electrons during chemical reactions.\xa0Metallic\xa0tendency increases going down a group.\xa0Non-metallic\xa0tendency increases going from left to right across the periodic table. | |
| 68337. |
What is electrical engineering |
| Answer» Electrical engineering is an engineering discipline concerned with the study, design and application of equipment, devices and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after commercialization of the electric telegraph, the telephone, and electrical power generation, distribution and use.Electrical engineering is now divided into a wide range of fields, including computer engineering, systems engineering, power engineering, telecommunications, radio-frequency engineering, signal processing, instrumentation, and electronics. Many of these disciplines overlap with other engineering branches, spanning a huge number of specializations including hardware engineering, power electronics, electromagnetics and waves, microwave engineering, nanotechnology, electrochemistry, renewable energies, mechatronics, and electrical materials science | |
| 68338. |
Why carbon have a lot of carbon compound |
| Answer» Carbon form large number of compounds due to the following properties: (a) Catenation → Carbon shows the property of catenation that is the ability to form bonds with other carbon atoms forming long chains both branched and unbranched chains, and even rings. (b) Tetravalency → Carbon has valency 4, it is capable of bonding with 4 other carbon atoms or atoms of other non-covalent elements, giving rise to compounds with specific properties depending on the elements present in the compound. (c) Isomerism → Carbon compounds show the property of isomerism that is compounds having same molecular formula but different structural formula. | |
| 68339. |
Which organ produce sperm inMale reproductive system? |
| Answer» The two testicles (or\xa0testes) produce sperm and the male *** hormone testosterone. | |
| 68340. |
Mention some mechanical barriers to avoid pregnancy. |
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Answer» IUCD( Intrautrine devices) - These devices are plastic or metal objects placed in the uterus of the female by a doctor. These may be categorized as non- medicated IUDs (Lippes loop), copper releasing IUDs (Cu T, Cu 7) and the hormone releasing IUDs (Progestasert, LNG- 20), dalcon shield. Diaphragam-\xa0It is soft, cup shaped rubber device being used by women to cover entrance to the uterus. It is smeared with spermicide before use. It is considered reliable as there are no dangerous side effects and it prevents sperms reaching the egg.It is a type of mechanical barrier. So, the correct answer is \'Diaphragm\'. Mechanical barriers\xa0are devices that provide a\xa0physical barrier\xa0between\xa0the\xa0sperm and\xa0the\xa0egg. Examples of\xa0mechanical barriers\xa0include\xa0the\xa0male condom, female condom, diaphragm, cervical cap, and sponge.\xa0The\xa0condom is\xa0the\xa0only contraceptive method that helps\xa0prevent\xa0sexually transmitted infections (STIs). The two testicles (or\xa0testes) produce sperm and the male *** hormone testosterone. |
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| 68341. |
How did men\'s sperm reach to female\'s ovum? |
| Answer» During internal fertilisation,male\xa0put his\xa0sperm\xa0inside a women body through an organ called *****. These\xa0sperms\xa0then fertilise the\xa0egg\xa0inside the\xa0woman\'s\xa0body. The fertilisation which occur outside the\xa0female\xa0body\xa0is\xa0called external fertilisation. | |
| 68342. |
One word answer what is tropic level |
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Answer» each levels of ecosystem called tropical level Skk A trophic level is the group of organisms within an ecosystem which occupy the same level in a food chain. There are five main trophic levels within a food chain, each of which differs in its nutritional relationship with the primary energy source. The primary energy source in any ecosystem is the Sun (although there are exceptions in deep sea ecosystems). |
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| 68343. |
Food web diagram with nane |
| Answer» \tFood web is a network of food chains where all the chains are naturally interconnected.\tEach organism is generally eaten by two or more kinds or organisms which are again eaten by several other organisms and so instead of straight line food chain, the series of organisms dependent on one another food can be shown by branched lines which is called as a food web.\tFlow of energy in a food chain is unidirectional, once it reaches the next tropic level it does not come back again.\tFor example- energy which passes to the herbivores does not come back again to autotrophs.\xa0 | |
| 68344. |
Non-biodegradable definition |
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Answer» Those substance which can not be completely destroyed is called non biodegradable Non-biodegradable substances do not break down or dissolve for many years. Because of that, they can be recycled and reused. So, instead of throwing wastes in the garbage, it can be dumped in a proper recycling place making it useful for other purposes. Those waste materials which cannot be broken down to non-poisious substances in nature.They cannot be recycled easily and requires lot of space for dumping. Example DDT, plastics etc. |
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| 68345. |
What causes flattening of sun during sunset |
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Answer» Apparent flattening of the sun’s disc at sunrise and sunset\xa0is due to atmospheric refraction. The density and the refractive index of the atmosphere decreases with altitude, so the rays above and below the sun on the horizon are refracted by different degrees. This causes the apparent flattening of the sun. But the rays from the sides of the sun on a horizontal plane are generally refracted by the same amount, hence the sun still appears circular along its sides. The rays of light from the bottom of the\xa0sun\xa0are refracting more than those from the top, flattening the\xa0sun\'s\xa0circular shape. “Flattened sun” can also refer to the\xa0Sun\xa0appearing in an oval shape close to the horizon during sunrise or sunset. The lower half of the\xa0sun\xa0appears darker in colour than the top half.\xa0At\xa0sunrise and\xa0sunset, the\xa0sun\xa0is near the horizon. The rays of light from the upper part and lower part of the periphery of the\xa0sun\xa0bend unequally on travelling\xa0through\xa0earth\'s atmosphere. That is why the\xa0sun\xa0appears oval or\xa0flattened at\xa0the time of sunrise and\xa0sunset. |
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| 68346. |
In chemistry what is gypsum |
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Answer» Gypsum\xa0is calcium sulphate dihydrate. The chemical formula of\xa0gypsum\xa0is CaSO4·2H2O. Plaster of Paris is prepared by heating\xa0gypsum\xa0to a temperature of 373K. When\xa0gypsum\xa0is heated to a temperature of 373k ,It loses three-Fourths of its water of crystallisation and forms Plaster of Paris. Which possesses water of crystallisation is gypsum .it has 2 water molecules ....chemical formuka is CaSo4 .2H2o Gypsum is CALCIUM SULPHATE DIHYDRATE....formula is CaSO4•2H2O.....use in plaster or pairs |
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| 68347. |
Board exam 2021 kab honge ? Any idea please tell me |
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Answer» In may May be in april When we will get idea ...We will inform ?? ek din? Kabhi nHi |
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| 68348. |
why johann mendelism |
| Answer» Gregor Johann Mendel\xa0conducted experiments on pea plants and proposed the rules of inheritance; based on his observations. Mendel observed that characters are often present in pairs. A pair of contrasting characters is called allele. | |
| 68349. |
How do isomers look like |
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Answer» Isomerism\xa0is the phenomenon in which more than one compounds have the same chemical formula but different chemical structures. Chemical compounds that have identical chemical formulae but differ in properties and the arrangement of atoms in the molecule are called\xa0isomers. Small in size |
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| 68350. |
Does netron chnge its orbit to protorn during isolation |
| Answer» | |