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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.
| 66351. |
What is meaning by aesthetic valu |
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Answer» Aesthetic value is the value that an object, event or state of affairs (most paradigmatically an art work or the natural environment) possesses in virtue of its capacity to elicit pleasure (positive value) or displeasure (negative value) when appreciated or experienced aesthetically. Aesthetic value is a value possessed by a thing or object in virtue of its capacity (negative or positive pleasure). |
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| 66352. |
Quantum Theory of Light |
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Answer» This theory is given by Albert Einstein in 1995 it states that light behaves like waves as well as particle so light have dual naturr Quantum theory describes that matter, and light consists of minute particles that have properties of waves that are associated with them. Light consists of particles known as photons and matter are made up of particles known as protons, electrons, and neutrons. Yar age hai hamari gf bf ki It states that both matter and light consist of tiny particles which have wave-like properties. Light is composed of photons and matter is composed of electrons, neutrons and protons. |
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| 66353. |
Importance of fossil in evolution |
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Answer» Fossils r the dead and decaying matter of plants and animals. Fossils of dead animals helps to see the progress in evolution by comparing the recent organism and the previous one. One of the example of fossil is archaeoptaryx which is a connection link between birds and reptiles. Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. ... Paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms. |
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| 66354. |
What is molecular phylogeny ? |
| Answer» Molecular phylogeny\xa0is the method which is used to understand the evolutionary history between two organisms of same or different species. Under this method the sequence of DNA, RNA, or proteins can be compared to know the evolutionary distance between the organisms. | |
| 66355. |
Explain electrolises |
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Answer» .a way of separating a liquid into its different chemical parts by passing an electric current through it Splitting of water into hydrogen and oxygen |
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| 66356. |
Difference between biology and biotech..? |
| Answer» Biology deals with the study of living organisms. While Biotechnology deals with the manupulation of living organisms for the betterment of mankind. Biology is a science while biotechnology is a branch of biology. | |
| 66357. |
State joules law of heating.... |
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Answer» Ha hu friends bolo Joules law of heating is stand that the heat produced is proportional to 1. the square of the current I 2. Resistance of the circuit R and 3. The time t during which the current flows through the circuit . H = i square rt Kya koi online h? |
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| 66358. |
What is strategic metals?name one strategic metal? |
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Answer» U r wrong bro....strategic metal are those which are used in country defence and they have great significance...some example of strategic metal are titanium,chromium,manganese..... Zinc, copper, silver, are some of these metals A strategic metal os basically a metal or mineral that is important for some kind of industrial processes or other us |
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| 66359. |
Activity when leadnitrate reacta with potassium iodine what we observe |
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Answer» Double displacement reaction will take place and a yellow ppt will be formed Iodine is a chemical element and react with potassium to form potassium iodide, but not potassium iodine. When a solution of potassium iodide is added into a lead nitrate solution, potassium nitrate and a bright yellow precipitate of lead iodide are produced.... |
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| 66360. |
Is Blushing a voluntary or lnvoluntary action? And Which brain control it.... |
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Answer» Involuntary actions are those actions which can not be controlled by brain ex- sneezing, heart beat. But voluntary actions are those actions which are controlled by brain ex- movement, speaking dood its blushing or blesshing. medulla oblongata is controlled it in the fore brain. Blushing is voluntary and mid brain controls it |
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| 66361. |
What is ionic compound ?list two properties |
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Answer» Ionic compound have high (m. P. ) melting point Or (b. P. )boiling point. It is formed between Metal and non metal by sharing of one or more electrons from metal to non metal. * In ionic bond strong electrostatic force occur due to this they have high m. P. Or b. P..* When electron are transfer metal to non metal then they achieve his nearest noble gas electronic conferiguration and became more stable. Ex_ * Al+Cl=AlCl3 The chemical bond formed by the transfer of electons is called ionic bonds. Properties of ionic bonds : 1.Ionic bonds have high m. p. Point and high b. p points. 2.Ionic compound conduct electricity when dissolved in water or melted. The compounds which have bonds formed by loss and gain of electrons are called ionic compounds or electrovalent compound and the bond formed is know as ionic bond or electrovalent bond. Two properties of Ionic compounds :(i) Ionic compounds are hard and brittle.(ii) Ionic compounds have high melting and boiling points. They hav high melting and boiling point amd they are generally in crystalline form Compounds formed by gaining or loosing electrons are called ionic compounds. They r soluble in organic solvents but insoluble in water. |
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| 66362. |
Both calcium and magnesium are Heavier than water but still float over it. Explain |
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Answer» When calcium reacts with water, hydrogen gas is evolved which sticks in calcium and calcium starts floating. ? They both float over water because bubbles of hydrogen gas stick to their surface when they react with water...... |
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| 66363. |
STD full form with example |
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Answer» STD stand for Sexually Transmitted Desieses. for example AIDS. Sexually Transmitted disease.Eg:HIV AIDS, gonorrhea,syphilis |
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| 66364. |
? Which Diagram had come in your Pri - Board ? |
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Answer» Nephron ,neuron ,digesive system ,flower reproductive parts Hey! sarvjeet where are you from? Human digestive system and longitudinal structure of flower Abhi tk science ka preboard hi nhi hua longitudinal flower,hearts and excretory system. |
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| 66365. |
What are the three laws of inheritance |
| Answer» The three laws given by Mendel are:i. Law of dominance - According to this law, when a cross is made between two homozygous individuals, only one of the two characters of the pair (dominant) appears in the F1 generation. There is the appearance of both the characters in F2 generation.ii. Law of segregation - This law states that the characteristics of an organism are determined by the internal factors which occur in pairs. Only one of a pair of such factors can be present in a single gamete.iii. Law of independent assortment - This law states that in the inheritance of more than one pair of traits in a cross simultaneously, the factors responsible for each pair of traits are distributed independently to the gametes. | |
| 66366. |
Which is the longest bone in human beings |
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Answer» Are muje bhi pta h bone means haddi but me yeh puch rha hu ki yeh konsi haddi hoti h Pr ye bone hoti kha pe h femur or thigh bone Thanks Femur |
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| 66367. |
Rbc,wbc and platetes are made in which cell of the bone marrow? |
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| 66368. |
What is allotropy and allotrops? |
| Answer» Allotropy- It is a property by which an element can exist in different forms having different physical properties.Allotropes- The different physical forms in which an element can exist are known as allotropes of that element. Example: the allotropes of sulphur are- rhombic sulphur and monoclinic sulphur. | |
| 66369. |
What is meant by gobar gas |
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Answer» gobargas is a technique of generating electricity and obtaining a clean fuel methane by decomposing animal or plant waste mainly gobar in a large tank A gas produced from cow dung which is used as fuel.It is a renewable energy source. ? |
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| 66370. |
Why do not two magnetic lines of force intersect with each other. This is ncert question |
| Answer» If two magnetic field lines intersect each oyher then the compass placed at that point will show deflection in two directions at a time and this is not possible | |
| 66371. |
What are paleontological evidence |
| Answer» Paleontology is a branch of biology in which we study about heredity | |
| 66372. |
Explain co-dominance |
| Answer» \tDominance is a relationship between two alleles of one gene that affect the phenotype of one allele and masks the contribution of another allele.\tCo-dominance is the type of dominance where the offspring show similarity to both the parents and it is due to the blending of alleles. | |
| 66373. |
Draw the structure and functions of human brain |
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Answer» Brain has major three parts.....FORE BRAIN:- It is the most complex part of the brain consists of cerebrum...FUNCTIONS:-1.)Thinkinf part of the brain.....2.)Control the volubtary actions....MID BRAIN:- Controls involuntary actions such as...1.) Change in pupil size ....2.) Reflex movement of head ,neck and trunk.......,,,,,HIND BRAIN:- IT has three parts...,,1.)CEREBULLUM :-Controls posture nd balance...2.) MEDULLA :-Controls involuntary actions such as ..blood pressure etc.....3.) PONS :-Involuntary actions,,,regulation of respiration.....??? It is provided in ncert book ....i hope u can understand how can we draw here☺ brain structure?? Are answer do draw not complsri But draw kaha kare |
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| 66374. |
How copper is extracted from copper pyrite? |
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| 66375. |
merit of mendeleeve periodic table |
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Answer» 1. He generalized the study of the elements then known as the study of a mere groups.2. In Mendeleev’s periodic table, he left some blank spaces. These vacant spaces were left for including elements that were not discovered at that time.3. Mendeleev could also predict the properties of these unknown elements, on the basis of the properties of the elements lying adjacent to these vacant spaces. He placed hydrogen without any explaination and he did not leave space for isotopes and he kept high reactive metal before less reactive metal. |
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| 66376. |
What is bromine water test??? Explain. |
| Answer» Thnx puja | |
| 66377. |
How many male gamates produced by pollen grains |
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Answer» Each pollen grain contains two male gametes but only one male gamete fuses with the egg while the other fuses with the polar nuclei to form the endosperm. 2 male gamates Two, one fuses with ovum and one fuses with other cell |
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| 66378. |
In which region the magnetic field around a current carrying solenoid is uniform? Show with diagram |
| Answer» A long\xa0cylindrical\xa0coil of insulated copper wire of large number of circular turns is called a solenoid.When an electric current is passed through a solenoid,it produces a magnetic field around it.Its magnetic field pattern is shown in the figure below :When a current is passed through the solenoid,the current in each circular loop has the same direction,their magnetic effects get added up producing a strong magnetic field.Inside the solenoid,the magnetic field is almost uniform and parallel to the axis of the solenoid. | |
| 66379. |
How are lungs designed in human beings to maximise area for gaseous exchange?? |
| Answer» Respiration in human beings takes place through a special system called as respiratory system.This involves nostrils, nasal cavity, larynx, bronchi, bronchioles ending in alveoli inside the lungs. Lungs are designed in such a way that they are lined by a thin membrane to facilitate the exchange of gases. Bronchi and bronchioles are the parts of respiratory system located in the lungs. \t*Primary bronchi are the structures which arise by the bifurcation of the wind pipe before entering the lungs. Primary bronchi divide and give rise to secondary bronchi. Bronchioles are the small tubular extensions of repeatedly dividing secondary bronchi inside the lung.\t*Bronchi end in bronchioles. Each bronchi divides at least 20 times to form smaller bronchioles Bronchioles end in small tubular structures called as alveolar tubes.Bronchi are made up of fibrocartilaginous layer. Bronchi serve as tubes of air conductors. Bronchi are larger in diameter \t*Bronchioles branch into many alveolar tubes. Bronchioles are lined by smooth muscles. Bronchioles are air conductors and others are respiratory gas exchangers. Bronchioles are smaller in diameter.\xa0\t*Alveoli are richly supplied by blood vessels which help in exchange of gases on the alveolar membrane.\xa0 | |
| 66380. |
Valency chart of all the elements |
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| 66381. |
What is the formula of aceteldehyde |
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Answer» Molecular Formula: C2H4O or CH3CHO Ethanal C2H4O |
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| 66382. |
What is the esterification reaction |
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Answer» The reaction between Acid and an Alcohol to produce ester as the product is called Esterification reaction. During this reaction a molecule of water is eliminated.Ex: CH₃COOH + C₂H₅OH →CH₃COOC₂H₅ + H₂OIn the above reaction Ethanoic acid reacted Ethyl alcohol to form an ester Ethyl Acetate and water molecule. Ch3COOH+C2H5OH GIVES CH3COOC2H5(ethyl ethanoate). What is the formula of esterification reaction Reaction between ethanoic acid and ethanol to form easter is called easterification reaction. |
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| 66383. |
what is ADP |
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Answer» thank u puja nd gaurav Puja right hai Adinosine di phosphate. Hii rahul hello Hi |
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| 66384. |
what is dental carries |
| Answer» \xa0Dental caries , also known as tooth decay or a cavity , is a disease where bacterial processes change carbohydrate like sugar in food left on teeth to acid that demineralises hard tooth structure (enamel , dentin , and cementum ). If demineralisation exceeds saliva and other remineralisation like from calcium, these tissues progressively break down, producing dental caries (cavities, holes in the teeth). Two groups of bacteria are responsible for initiating caries: Streptococcus mutans and Lactobacillus. | |
| 66385. |
How to draw structure and find formula of a given carbon compound ?? |
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| 66386. |
What is nomenclture |
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Answer» 4497 A system of names and terms used in a particular science. |
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| 66387. |
What is tooth enamel chemically ? State the condition when it starts corroding. |
| Answer» Tooth Enamel is the hardest part of our body. It is composed of 96 % Inorganic material and 4 % Organic material. The Inorganic material present is Crystalline calcium Phosphate .White tooth enamel is calcium phosphate though a very hard substance, which gets affected when the pH of our mouth falls below 5.5.It happens because the bacteria present in our mouth break down sugar and food particles into acids which damage our teeth by corroding them. To prevent the tooth decay, after eating one should clean mouth thoroughly with tooth powder or toothpaste, which is basic in nature. It neutralises the excess of acid. | |
| 66388. |
Lead nitrate crystals are heated strongly .Give chemical reaction |
| Answer» Pb(NO3) 2 on heating gives PbO+NO2+O2 | |
| 66389. |
Why do we aplly paint on iron article |
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Answer» We apply paint on iron articles to prevent them from corrosion. Paint prevents iron from coming in contact with air and moisture. Thus, painting prevents rusting of iron articles. We apply paint on iron articles to prevent them from rusting on reactin with moisture Ya, intelligent is ryt To prrvent it from rusting |
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| 66390. |
Why carbon cannot reduces the oxide of Na or Mg |
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Answer» This is because sodium and magnesium are more reactive than carbon. This means that carbon cannot reduce the oxides of these metals. The two metals are above carbon in the reactivity series and thus have a high affinity to oxygen than carbon does and thus cannot be reduced by it. Because carbon is less reactive than na and mg Because carbon is less reactive |
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| 66391. |
Why reactivity of aluminium decreases if it is dipped in HNO³ |
| Answer» Because nitric acid is a strong oxidising agent so when aluminium is dipped in nitric acid, a oxide layer of aluminium is deposited on the metal which prevents it from further reaction | |
| 66392. |
What is the reaction between siap molecules and ions present in hard water? |
| Answer» It is soap not siap | |
| 66393. |
Herbivores have long intestine than carnivorous.why? |
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Answer» ya puja is ryt. Because, herbivores eat green plants as food, which contains cellulose which are hard to digest but carnivores eat flesh which is easily digested........... |
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| 66394. |
Anyone tell me the cleansing action of soap |
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Answer» When soap is dissolved in water it forms colloidal suspension. In this, the soap molecules cluster together to form micelles and remain radially suspended in water with hydrocarbon end towards centre and ionic end directed outward. The dirt particles always adhere to oil and grease present on clothes. When dirty cloth is dipped in solution,its hydrocarbon end of micelles attach to Greece and polar end remains in water. A stable emulsion of oil in water is formed. This globules bearing dirt gets washed out. Plzz tell fastly Ya though the micelles formation. |
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| 66395. |
Defination of metal |
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Answer» which metal lose it\'s electron (except H2)that is metals Metals are the elements that conduct heat and electricity and are malleable and ductile Metals are the elements (except hydrogen) which form positive ions by losing electrons. |
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| 66396. |
Evolution and classification are interlinked justify your answer |
| Answer» Different forms of organisms are evolved during the coarse of evolution. Classification deals with grouping these organism on groups and subgroups on the basis of similarities and different between them. | |
| 66397. |
What precautions should be taken will studing the properties of acetic acid |
| Answer» Some of the precaution are : 1. Avoid excessive inhaling of acetic acid vapours.2. Do not use laboratory burners or open flames in this experiment.3. Never smell acetic acid directly.4. Keep the mouth of the test tube away from you and your classmates\' face.5. Use the chemicals judiciously. | |
| 66398. |
Why star twinkle but planet not ? |
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Answer» stars are very far from us thats by there light come on the earth by crossing many refracted medium that\'s why they are twinkling and plants don\'t twinkle because it do not have its self light and it is stay near the earth that\'s why its twinkling property is zero. Stars are very far away from us and appears as a pint source of light. Sometimes atmosphere retracts more light and sometimes less light. This continuous brighter and dimming effect make the stars to twinkle whereas planets r a collection of point sources. So, brightening effect caused by one part is nullified by the dimming effect caused by another part. Hence, planets do not twinkle but star does. |
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| 66399. |
State three limitation of harnessing of wind energy |
| Answer» Hi puja & vinit | |
| 66400. |
What is biogas? Describe the step involved in obtaining biogas? |
| Answer» it is used as a fuel from waste product of animal and agricultural activities like cowdung,dry leaf etc. | |