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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.
| 58951. |
What are alpha particles??? |
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Answer» Alpha particles are positively charged particles, having two protons\xa0and two neutrons and are identical to the nucleus of helium atom. They are spontaneously emitted by radioactive element. Alpha particles are positively charged particles which are given out as radiations by a radioactive substance......... |
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| 58952. |
Why we rub magnesium ribbion with sand paper before burning it..?? |
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Answer» When exposed to air many metals will slowly react with oxygen in the atmosphere to form metal oxides and magnesium is one of those metals. Like rusting in case of iron, with magnesium, the oxide layer forms a white coating on the outside of the metal that will slow down or interfere with the burning process. Rubbing with sand paper helps to remove this oxide layer due to which burning speeds up. To remove the oxide layer of magnesium.. |
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| 58953. |
What is autotropic or heterotrophic |
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Answer» Hetro trophic are those who depend on other plant and animal for their food Autotrophic mode of nutrition:\tAutotrophic nutrition is that mode of nutrition in which an organism makes (or synthesizes) its own food from the simple inorganic materials like carbon dioxide and water present in the surroundings (with the help of sunlight energy).\tThose organisms which can make their own food from carbon dioxide and water are called autotrophs.\tExample: all green plants, autotrophic bacteria.\tAutotrophs make their food by photosynthesis.Heterotrophic mode of nutrition:\tHeterotrophic nutrition is that mode of nutrition in which an organism cannot make (or synthesizes) its own food from simple inorganic materials like carbon dioxide and water, and depends on other organisms for its food.\tThose organisms which cannot make their own food from inorganic substances like carbon dioxide and water, and depends on other organisms for their food are called heterotrophs.\tExample: all the animals (man, dog, cat, lion, etc.), most bacteria and fungi.\xa0 Auto trophic are those who. prepare their own food |
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| 58954. |
Balance following equation 2ZnS + 3O2 = 2ZnO + 2SO2 |
| Answer» | |
| 58955. |
What are the important topics of chapter life process? |
| Answer» Nutrition in human beings Mechanism of repiratonMechanism of urine formation | |
| 58956. |
How I prepare my sylabus |
| Answer» U can revise ur syllabus by doing fun s e x with ur partner and learn | |
| 58957. |
Rules of balancing equation |
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Answer» Check the molecules present in each of the elements I Hit and trial method is best |
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| 58958. |
What do you mean by science? |
| Answer» Science is the systematic knowledge of the fact and throw the relation and observation | |
| 58959. |
What is the role of the digestive enzymes |
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Answer» Digestive enzymes helps in digesting complex food materials into simpler molecules for absorption by the body. During digestion of food, different parts of the alimentary canal produces different digestive enzymes that helps in digestion of different components of food. For example, saliva produces salivary amylase that digests the starch. Stomach contain gastric glands that produces pepsin that helps in protein digestion. Apart from that other enzymes such as trypsin, chymotrypsin also helps in protein digestion. To help in the process of digestion |
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| 58960. |
Hlo! Anybody write the reactivity serious |
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Answer» It\'s urgent Sorry but it will help you a lot.... Try to use your own mind.. This will not help you to get good marks in exam... So at least first try to think then search in different books if you do not get then ask here, but only if its urgent.. Otherwise ask your teacher... |
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| 58961. |
Elcrotic configuration of iron |
| Answer» 2,8,14,2 | |
| 58962. |
Define reproduction and it\'s type |
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Answer» Reproduction in human being is by reproductive organ sperm and ovary. Sperm fuses with ovary forms zygote. Male sperm fuses with female ovary. s e x begins . Women become pregnant and baby born??? Reproduction is the biological process by which organisms give birth or give rise to a new organism. This process is seen in all living organisms- both plants and animals.Reproduction can be of two types:\tAsexual- Involves a single parent which gives rise to a new organism\tSexual- Involves two parents of the opposite *** that give rise to a new organism. Reproduction is a process in which new organism are produced from existintong one |
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| 58963. |
How light is a sorce of energy |
| Answer» Light contains photons which are minute packets of energy. When an object’s atoms get heated up, it results in the production of photons and this is how photons are produced. The electrons find excitement from the heat and results in earning extra energy. The energy is released in the form of a photon and more photons come out as the substance gets hotter. | |
| 58964. |
A 6 ohm resistance wire is doubled up by folding . Calculate the new resistance of wire |
| Answer» Resistance=ρL/AHere, Resistance=6ohmTherefore,6=ρL/AIn second case, Resistance,R\'=ρL\'/A\'As the wire is doubled so L\'=L/2, A\'=2ASo new resistance,R\'=ρL/4A=(1/4)ρL/ABut\xa0ρL/A=6So, R\'=6/4=1.5Ω | |
| 58965. |
Activity to show that photosynthesis needs sunlight |
| Answer» To show experimentally that light is essential for photosynthesis.Apparatus and materials required: A healthy potted plant, a petri dish, a beaker containing water, forceps, a water bath, a piece of wire gauze, a tripod, a burner, a box of matches, alcohol a strip of black paper, iodine solution and clips.Theory:Photosynthesis is a biochemical process by which green plants s5mthesize simple sugar in the presence of sunlight using carbon dioxide from the atmosphere and water from the soil. This simple sugar (glucose) is later converted to starch.6CO2 + 12H2O → ChlorophyII / Sunlight C6H12O6 + 6H2O + 6O2The most important factor for photosynthesis is light. The rate of photosynthesis depends on the quantity and quality of light. The chlorophyll molecule in green leaves absorb light, get excited and emit electrons. The emitted electrons are used in the production of adenosine triphosphate (ATP). Finally the solar energy is converted into chemical energy and stored in the glucose produced.The rate of photosynthesis is the maximum in the presence of red and blue lights, while in green light the rate is minimum because green light is reflected by the chlorophyll molecules.Procedure:1. Take the potted plant and keep it in a dark place for 2-3 days so that the leaves get destarched.2. Cover a part of one of its leaves with the strip of black paper. Make sure that you cover both the sides of the leaf.3. Now place this plant in sunlight for 3—4 hours.4. Pluck the selected covered leaf and remove the black paper covering it.5. Place this leaf in the beaker containing water and boil it for about 10 minutes.6. Take out the leaf and now boil it in alcohol, using the water bath, for 10 minutes. This removes the chlorophyll.7. Take out the leaf and wash it under running water.8. Place this leaf in the Petri dish and put a few drops of iodine solution on it. Now observe the change in colour.Observations: The leaf turns blue-black except in the covered region. As this covered region did not receive light, photosynthesis did not occur. Hence no starch was formed there. The uncovered region received light and starch was formed there due to photosynthesis.Result: Light is essential for photosynthesis.Precautions:1. Before starting the experiment, the leaf must be distracted.2. The leaf must be covered with black paper properly to prevent the entry of light.3. Boiling the leaf in alcohol should be done in the water bath.\xa0 | |
| 58966. |
What is biomass... |
| Answer» Biomass is biological material obtained from living or recently living organisms that can be processed into electricity, fuel and heat. Biomass has been used for thousands of years and there are many forms available which are used in a number of ways. For example, in a wood fire the wood that is burning is a biomass fuel. Biomass is also used in building materials, composting and as in Drax’s case in the electricity industry. The materials that Drax use include sustainable wood-based products, forestry residues and residual agricultural products, such as sunflower seed husks and peanut husks | |
| 58967. |
Potential electric |
| Answer» The electric potential (or potential) at a point in an electric field is defined as the work done in an moving a unit positive charge from infinity to that point. | |
| 58968. |
What is the law of inheritance.....?? |
| Answer» Mendel conducted experiments on seven characters of pea plants to explain inheritance. He put forth main laws of inheritance which comprised 4 independent laws.Law of unit characters: All the characters of an individual are stored in gametes in the form of factors present on the chromosomes. These factors are referred to as genes. Genes are located at a particular locus on the homologous pair of chromosomes. Genes are responsible for traits of an individual.Law of dominance: According to the principle of dominance, only one member of the pair of characters is expressed by suppressing the recessive character. The expressed character is called as dominant character.Law of segregation: during hybrid formation, two unlike factors do not lose their identity. During gamete formation, they segregate from one another and redistribute themselves in next generation.Law of independent assortment: When two pairs of independent alleles are brought together, they exhibit independent dominant effects. During gamete formation, genes of different characters are independent of one another. | |
| 58969. |
What is law of reflections |
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Answer» Angle of incidence is always equal to angle of reflection The angle of incidence and angle of reflection all lie on same plane |
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| 58970. |
Explain the ohm\'s law |
| Answer» Ohm’s law states that the current (I) flowing through a conductor is directly proportional to the potential difference (V) applied across its ends, provided the temperature and other physical conditions remain unchanged.\xa0Mathematically, V ∝ I V = RI\xa0The proportionality constant R is called the resistance of the conductor.\xa0\xa0 | |
| 58971. |
Explain fleming left hand rule??? |
| Answer» Fleming’s left hand rule:Stretch the forefinger, the central finger and the thumb of the left hand mutually perpendicular to each other. If the forefinger points in the direction of the magnetic field, the central finger in the direction of current then, the thumb points in the direction of force exerted by the conductor.The rule is illustrated in the below figure.\xa0 | |
| 58972. |
what are step taken to convert unbalanced equation to balanced equation . |
| Answer» First, we check all the atoms, molecules or ions are same or different on both sides,If same, it is balanced, Otherwise unbalanced, so on..After that we will multiply constant on tjat atom on any side which are not equal to make them equal. | |
| 58973. |
Define blood? And it\'s constituents |
| Answer» Blood is a fluid. It is a connective tissue.Composition: Blood contains the following components:(i) Plasma: It is a fluid matrix. It is colourless and contains a lot of water, many proteins and salts.(ii) Red blood corpuscles (RBC): Blood looks red because of the red coloured pigment haemoglobin present in Red blood cells. RBCs are circular in shape and do not contain nuclei.Blood cells(iii)\xa0White blood corpuscles (WBC): These are lesser in number than the red blood cells. They are white or colourless cells. They protect from infection.(iv)\xa0Blood platelets: Blood platelets are fragments of cells and they do not possess nuclei. They help in clotting of blood. | |
| 58974. |
Why does the colour of capper sulphate solution changed whwn an iron nail is dipped in it |
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Answer» Simply, colour change is one of the characteristics of chemical reaction. When fe reacts with Cuso4, it produces new substances i.e. FeSo4 and Cu is displaced. Since new substances are formed with new properties and colour of FeSo4 is green that\'s why colour change takes place. Iron displaces copper Because iron displaces copper from copper sulphate solution..... Iron is more reactive than copper. So, when an iron nail is dipped in a copper sulphate solution, iron displaces copper from its solution to form iron sulphate, which is green in color.Fe (s) + CuSO4 (aq) → FeSO4 (aq) + Cu (s) Hence, the blue color of copper sulphate solution changes into green color because of this displacement reaction.\xa0 |
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| 58975. |
If metals contain free electrons then why they do not have negative charge |
| Answer» Because no. of free electrons is less than nuclei | |
| 58976. |
Entrance class 11 aptitude test question |
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| 58977. |
Question for 11 entrance exam |
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| 58978. |
Are hydrocarbonate and bicarbonate same or different |
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Answer» Both are same Same.. Nd basic in nature.. |
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| 58979. |
What is myopia..? |
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Answer» Myopia is caused due to the elongation of eye ball Myopia is the defect of the eye vision due to which a person can see the near by objects clearly but cannot see the far objects so distinctly.Causes of myopia: Myopia is caused:—due to the elongation of the eyeball.—due to decrease in the focal length of the eye lens.Myopia can be corrected by using a concave lens of suitable focal length in the spectacles of such a person. |
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| 58980. |
what is the definition of chemical |
| Answer» A chemical is any substance consisting of matter. This includes any liquid, solid, or gas. A chemical is any pure substance (an element) or any mixture (a solution, compound, or gas). Chemicals occur naturally and can be made artificially. | |
| 58981. |
Valancy of iron fe |
| Answer» 4 | |
| 58982. |
Valancy of copper |
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Answer» 1 Valency of copper is 1 from spdf method |
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| 58983. |
How many no of electrons are there in charge of 3*10^-12 and chage of 1 electron is 1.6*10^-19 |
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| 58984. |
How brain is sharp |
| Answer» \tExercising doesn’t just exercise the body, it also helps to exercise your brain.\xa0Exercise\xa0benefits the brain\xa0by reducing insulin resistance, stimulating the release and survival of new blood vessels in the brain.\tA healthy diet might be as good for your brain as it is for your overall health .\tGetting a consistent 7 to 8 hours of night sleep plays a key to boosting the brainpower.\tMeditation is the practice of sitting and letting the mind to dissolve. It is a state of deep peace that occurs when the mind is calm and silent, yet completely alert.\tIn the hustle and bustle of life, we often try to attempt simultaneously as many jobs as possible that ultimately makes you prone to errors as well as make you forgetful. | |
| 58985. |
How to sharp our brain |
| Answer» \tExercising doesn’t just exercise the body, it also helps to exercise your brain.\xa0Exercise\xa0benefits the brain\xa0by reducing insulin resistance, stimulating the release and survival of new blood vessels in the brain.\tA healthy diet might be as good for your brain as it is for your overall health .\tGetting a consistent 7 to 8 hours of night sleep plays a key to boosting the brainpower.\tMeditation is the practice of sitting and letting the mind to dissolve. It is a state of deep peace that occurs when the mind is calm and silent, yet completely alert.\tIn the hustle and bustle of life, we often try to attempt simultaneously as many jobs as possible that ultimately makes you prone to errors as well as make you forgetful. | |
| 58986. |
S.I unit of charge... |
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Answer» Coulomb The SI unit of electric charge is Coulomb (C). A coulomb of charge is a very large charge. In electrostatics we therefore often work with charge in micro-coulombs ( 1 μC ×10−6 C ) and nanocoulombs ( 1 nC 1×10−9 C ). |
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| 58987. |
Hello guys my question is that what is glycogen |
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Answer» Plants store their food or energy in the form of starch in that similar way the animal stores their food and energy as glycogen Glycogen is a polysaccharide of glucose that serves as a form of energy storage in fungi and animals. The polysaccharide structure of glucose shows the primary storage form of glucose in the body. Glycogen is made and stored in the cells of liver and muscles that are hydrated with the four parts of water. It acts as the secondary long-term energy storage. Muscle glycogen is quickly converted into glucose by muscle cells and liver glycogen that converts into glucose for use throughout the body which includes the central nervous system. Glycogen is the form of glucose that is stored in the body. It is a complex carbohydrate or polysaccharide stored inside animal tissue. Liver transforms glucose into glycogen. Glucose present in the bloodstream after digestion is absorbed by the liver. |
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| 58988. |
Why reproduction is not considered a life process ? |
| Answer» I think it is considerd as life process | |
| 58989. |
When earth is build |
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| 58990. |
Give example of fatty acid |
| Answer» Palmitic acid and stearic acid | |
| 58991. |
Physics (energy lesson blue questions |
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| 58992. |
Easy diagram of human respiration |
| Answer» Yha kha de diagram or human respiratory system ka koi easy diagram ni hai...?? | |
| 58993. |
What is reapiration |
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| 58994. |
Writer of novel " pamela "????? |
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| 58995. |
Give me some more content on revision notes of life process chapter |
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| 58996. |
An organic compound X reacts with sodium metal to form Sodium ethoxide and gas why identify X and Y |
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| 58997. |
Why blood is called fluid connective tissue? |
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Answer» Blood contains liquid matrix and blood cells are floating in it. It does not have fibres. It circulates in the body. Since it forms the framework that support the body. It anchors the muscles and supports the body therefore it is calle a connective tissue. Tumhari education kha se chl rhe h blood is a fluid connective tissue because the main feature of fluid connective tissue is connecting different tissues or parts of the body and having matrix. ... We recognize that blood carries nutrients and oxygen to tissue cells and carries wastes from these cells to the lungs or kidneys for elimination. |
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| 58998. |
In increasing order force of attraction b/w the particle water ,sugar,oxygen |
| Answer» Sugar>Water>Oxygen | |
| 58999. |
Explain the heating effect of electric current |
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Answer» Heating Effect of Electric Current. When an electric current is passed through a conductor, the conductor becomes hot after some time and produces heat. This happens due to the conversion of some amount of electric energy, passing through the conductor, into heat energy. ... The resistance, R of the conductor. When an electric current is passed through a conductor, the conductor becomes hot and produces heat ..... |
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| 59000. |
Make a elericity bill |
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Answer» . Of your house |
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