InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 4001. |
3004 Ththe KEabPuhat uill bbathmomentum0 |
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| 4002. |
ons iWhat does an atom consist of? |
| Answer» <p>An atom consists of the positively charged nucleus in its centre which consists of protons and neutrons and negatively charged electrons revolving around the nucleus in circular orbits. The atom as a whole is electrically neutral.</p><p>PLEASE HIT THE LIKE BUTTON</p> | |
| 4003. |
Exercisesdifferences between acids and bases(a) Both äulub) Il an indicator gves a Cchange with a base(c) If an indicator changesih anacid |
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| 4004. |
() Write any four differences between living and non-lithings? |
| Answer» <p>living things shows growth but non living doesn't..living things can breath but non doesn't.living things can respond to the environment but non living things doesn't.living things can need food to survive but non living things doesn't need anything..</p> <p>thank u</p> | |
| 4005. |
what is a non living things |
| Answer» <p>Plants cannot move from one place to another. However, plants move their stem to face the sun. Hence, they are also livingthings.Thingswhich cannot grow, move, breathe and reproduce are callednonliving things. They do not have any kind of life in them.</p> <p>Non living things are simply the things which do not respire. They do not eat,grow.eg. car,table,fan etc</p> | |
| 4006. |
Why are viruses considered as being at the 'borderline between living andnon-living things! |
| Answer» <p>Viruses are considered as being at the " borderline between living and non living because viruses are the smallest microbes which can developed only inside the cells of the host bactirium(which may be an </p> <p>because when a virus is inside the body of an organism, it reproduces and start multiplying itself and when virus is outside the body of an organism it cannot reproduces itself. The virus can only reproduce in the host's body.</p> | |
| 4007. |
who 'would have got a Nobel even if worked in Antarctica' wasa) Vikram Sarabhaib) Homi Bhabhac) S Chandrashekard) C V Raman |
| Answer» <p>option a is the answer. </p> | |
| 4008. |
Why do fish and frog produce a huge number of eggs each year? |
| Answer» <p>1) External fertilisation occurs in frog and fish..2)The females lays a vast number of eggs in water and males release some millions of sperms on to them in water.3)As the chance of fertilisation is controlled by nature, which occurs externally henceit is inevitble to give rise to vast number of eggs by fish and frog.</p> | |
| 4009. |
.Matchitemsiuilseedsaredispin Column I with those in Column I:ColumnI(a) Budb) Eyes(c) Fragmentation(d) Wings(e) SporesColumn IIi) Mapleii) SpirogyraYeastâ(iii)(iv) Bread mould(v) Potato(vi) Rose |
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| 4010. |
in Cuiumn I1:Column I(a) Bud(b) Eyes(c) Fragmentation(d) Wings(e) SporesColumn II(i) Maple(ii) Spirogyra(iii) Yeast(iv) Bread mould(v) Potato(vi) Rose |
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| 4011. |
ieilSeeds are dispersed.9. Match items in Column I with those in Column II:ColumnI(a) Bud(b) Eyes(c) Fragmentation(d) Wings(e) SporesColumn I(1) Maple(ii) Spirogyra(ii) Yeast(iv) Bread mould(v) Potato(vi) Rose |
| Answer» <p>Thanks.......... </p> <p>A - 3B-5C - 2D-1E-4</p> | |
| 4012. |
0.20 The percentage errors in the measurement of mass andspeed are 2% and 3% respectively. How much will be themaximum error in the estimation of the kinetic energyobtained by measuring mass and speed?(a) 11%(c) 5%(b)(d)8%1% |
| Answer» <p>FORMULA</p><p>1/2 m(v)^2</p><p>So for finding error in multiplication TOTAL %UNCERTANITY ARE ADDED UP aand power is multiplied by percentage uncertainty</p><p>Uncertanity = error</p><p>Error in mass 2% and in velocity 3%</p><p>So error in velocity should be 2(3%)= 6%</p><p>Total error =2%+6%=8%</p> | |
| 4013. |
Which of the following explains why air isnot visible?(A) It is nearly a perfect transparentsubstance.(B) It neither absorbs nor reflects light.(C) It transmits whole of light.(D) All of these. |
| Answer» <p>answer is D) all of theseAir is transparent because air contains so few atoms, light waves run into very few of them when they shine through air. The molecules of air are smaller than the wavelength of the light. Due to this reason, particles of air weakly interact with visible light and reflect little or no light to our eyes.Transparent material allows all the light to pass through it. In other words transmission is the property of light to permit the passage of light with some or none of the incident light being absorbed or scattered in the process. Since, air is transparent, it transmits almost whole of light.</p> | |
| 4014. |
5. Dispersion ofa. Red.. colour is minimum in visible range of light.d. Violetb. Bluec. Green: Exercise; |
| Answer» <p>Dispersion of violet colour is minimum.violet has shortest wavelength</p> <p>Red because Red has longest wavelength. Wavelength increases dispersion decreases</p> | |
| 4015. |
x) Noble gases have very low boiling points. Why? |
| Answer» <p>Being monoatomic is a crucialpointto understand themeltingandboiling pointsofnoble gases. Why? If thegasis monoatomic, that means the intermolecular forces will be extremely weak. ... So there is weak interaction between atoms of thenoble gases, leaving alow boiling pointfor them</p> | |
| 4016. |
8. Give one use each of a concave and a convex mirror |
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| 4017. |
What are spherical mirrors? |
| Answer» <p>A spherical mirror is a mirror which has the shape of a piece cut out of a spherical surface. There are two types of spherical mirrors: concave, and convex</p> | |
| 4018. |
b) Name the muscular pouch which carries/ holds testicles outside the body of male.[1) |
| Answer» <p>scrotum is the answer.</p><p>scrotum contains the testicles (also calledtestes), as well as many nerves and blood vessels. The scrotum has a protective function and acts as a climate control system for thetestes. For normal sperm development, thetestesmust be at a temperature slightly cooler than thebodytemperature.</p> | |
| 4019. |
B-7. Find the mageB-8.Each of the batteries shown in figure has an emf equal to 10 V Find the magnetic field B at the point p. |
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| 4020. |
2(a) Why do we wear cotton clothes in summers ? |
| Answer» <p>We should wear cotton clothes in summerbecause duringsummers wetend to sweat a lot andcottonfabric absorbs this sweat and helps the body to cool down. Cottonallows better air circulation, which helps in absorbing and removing body moisture caused by sweat.</p> | |
| 4021. |
B-7. Find the magneic field B at the centre of a square loop of side 'a, carrying a current iR Farhof the hatteries sheun in fioure has an emf equal to 10 V. Find the magnetic field B at the point p |
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| 4022. |
Slept means |
| Answer» <p>It is a past and past participle ofsleep.</p> <p>answers</p> | |
| 4023. |
Can we bend our body at every part? |
| Answer» <p>No we can bent only at joints</p> | |
| 4024. |
e) What is a magnetic compass? How is it usefultshow that magnetism in a bar magnet is strongest at its pokes) How can you magnetise an iron needle? |
| Answer» <p>Themagnetic compasswas animportantadvance in navigation because it allowed mariners to determine their direction even if clouds obscured their usual astronomical cues such as the North Star. </p><p>It uses amagneticneedle that can turn freely so that it always points to the north pole of the Earth'smagneticfield.</p> <p>2. The magneticfield of abar magnet is strongestat eitherpoleofthe magnet. It is equallystrong at thenorthpole when compared withthesouthpole.</p><p>Theforce is weaker inthemiddle ofthe magnetand halfway betweenthe poleandthecenter.</p> <p>3. Stroke aneedlewith the north end of a bar magnet around 50 times, lifting between strokes. </p><p>Stroking from tail to tip pulls theneedle's ironatoms into alignment, turning theneedleinto a weak temporary magnet. </p><p>Attach themagnetised needleto your circle of cork with tack and carefully place it into a dish of water.</p> | |
| 4025. |
8. What do farmers add to reduce theacidity of the soil?tSodium hydroxideby Calcium oxidec. Sodium chloridea Calcium hydroxide |
| Answer» <p>The most common way to raise the pH ofsoilis toaddpulverized limestone to thesoil. </p><p>Limestone acts as asoil acidneutralizer and consists of either calcium and magnesium carbonate or calcium carbonate. These are called dolomitic limestone and calcitic limestone respectively.</p> | |
| 4026. |
what are minerals |
| Answer» <p>Ans :- A mineral is a naturally occurring chemical compound, usually of crystalline form and not produced by life processes. A mineral has one specific chemical composition, whereas a rock can be an aggregate of different minerals or mineraloids. The study of minerals is called mineralogy.</p><p>PLEASE LIKE THE ANSWER</p> | |
| 4027. |
what is minerals |
| Answer» <p>Mineralsare substances that are formed naturally in the Earth.Mineralsare usually solid, inorganic, have a crystal structure, and form naturally by geological processes. The study ofmineralsis called mineralogy. Amineralcan be made of single chemical element or more usually a compound.</p> <p>Minerals are formed on the earth.</p> <p>minerals are formed on the earth is the correct answer of the given question </p> <p>a natural substance such as coal, salt, oil, etc. especially one that is found in the ground. Some minerals are also present in food and drink and are very important for good health</p> | |
| 4028. |
Explain how glucose is oxidised during aerobic respirationORnd minerals through Xylem, |
| Answer» <p>During aerobic respiration which takes place in the mitochondria of cells, glucose reacts with oxygen to form 36 molecules of adenosine triphosphate or A.T.P. as well as the wastes carbon dioxide and water vapor. A.T.P. provides the cell with the energy to live</p> | |
| 4029. |
Write the method which is used to separate such components which differs intheir Boiling point by less than 25°C. |
| Answer» <p>Fractional distillation</p> | |
| 4030. |
By which asexual means do hydra reproduce? |
| Answer» <p>Hydra reproduce by process of budding</p> | |
| 4031. |
in Hydra with diagram |
| Answer» <p>Hydra, a small freshwater commonest polyp, is readily obtainable coelenterate. It serves a good example from the coelenterates to illustrate the fundamental characteristics of Metazoa. Leeuwenhoek (1702), first described it to the Royal Society of London but Trembley (1744) recognised its animal nature. Reaumur called it a polyp, while Linnaeus gave the name Hydra because of its special power of regeneration</p> | |
| 4032. |
Multiple Choice QuestionsTick() the correct option.1. Which one of the following is a cereal?(a) Almond (b) Gram9 People of millo r lo(c) Mustard(d) Wheat |
| Answer» <p>the answer is (b) gram</p> <p>Thinku</p> <p>WheatOpti on D</p><p>Cereals are the grains that are in the grass family -wheat,rye,rice,corn,millet, and many others. There are also pseudograins that are often called grains but are not cereals</p><p>its a cereal</p> <p>option B - Gramis your answer.</p> | |
| 4033. |
Draw a leaf and label its parts. Explain howvenation differs in leaves. |
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| 4034. |
d)NodesParallel venation is not found in(a) sugarcane(c) maize(b) peepal(d) wheat |
| Answer» <p>Parallel venation is not found in (b)peepal</p> | |
| 4035. |
How does electricity flow in a circuit? Draw an open circuit |
| Answer» <p>Ans :- When a wire is connected to battery terminals,electrons flowfrom negative to positive. Unlike (opposite) charges attract, like (same) charges repel.Electronshave a negative charge—they are repelled from the negative and attracted to the positive.</p> <p>thanks</p> | |
| 4036. |
What is called a tissue? Give examples of tissue. |
| Answer» <p>A tissue is a group of cells that have a similar shape and function. Different types of tissues can be found in different organs. In humans, there are four basic types of tissue: epithelial, connective, muscular, and nervous tissue. There may be various sub-tissues within each of the primary tissues.</p> | |
| 4037. |
Define the term "tissue". |
| Answer» <p>A group of similar cells that perform a common fuction and have a common origin is called a tissue</p> | |
| 4038. |
The resonant frequency of a circuit is f. If the capacitance is made 4 times the initial values, thenthe resonant frequency will become(1) f/2(2) 2f(3) f(4) f/4 |
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| 4039. |
Why is an ammeter always connected in seriesin an electric circuit? |
| Answer» <p>Anammeterisconnected in serieswith the circuit because the purpose of theammeteris to measure the current through the circuit. Since theammeteris a low impedance device,connectingit inparallelwith the circuit would cause a short circuit, damaging theammeterand/or the circuit</p> <p>Anammeterisconnected in serieswith the circuit because the purpose of theammeteris to measure the current through the circuit. Since theammeter is a low impedance device,connecting it inparallelwith the circuit would cause a short circuit, damaging the ammeterand/or the circuit</p> | |
| 4040. |
6. How did Bachendri Pal put up the Indian flag on the peak of Mount Everest? |
| Answer» <p>Mt. Everest is the highest peak of the world and reaching its peak is a great achievement. Bachendri Pal was the first Indian lady to climb it. It was an honour for our country and thus she put up the Indian flag on the peak so that our country feels proud.</p> | |
| 4041. |
37Equal masses of methane and hydrogen are mixed in an empty container at 25 C. lhe traction ofpressure exerted by hydrogen isA) 732gofoogen (Al wt=16)and 0.2 g of hydrogen (At wt. "I)are placed in a l 121, flaskor te161738 |
| Answer» <p>Let x grams of each hydrogen and methane are mixed, Moles of H2 = x/2 Moles of CH4 = x/16 ⇒ Mole-fraction of H2 = (x/2)/(x/2 + x/16) = 8/9 ⇒ (Partial pressure of H_2)/(Total pressure) = mole-fraction of H2 = 8/9</p> | |
| 4042. |
(3) Circular motion : The motion of an objectis called circular motion. eig. Motion of around ceiling fan.......--------------.......... |
| Answer» <p>circular motionis amovementof an object along the circumference of a circle or rotation along acircularpath. It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation.</p> | |
| 4043. |
Vr/ A particle is moving around a circular path withuniform angular speed (o). The radius of the circularpath is (r). The acceleration of the particle is :-27.0)0D(B)(C) vo (D) vTVco |
| Answer» <p>a=F/m=mw²r/m</p><p>a=w^2/r</p> | |
| 4044. |
what do you mean by raw silk? |
| Answer» <p>Raw silk is typically a short fiber silk recycled from spinning silk.In the production of mulberry silk only a certain middle section of the cocoon can be unreeled for spinning silk. </p><p>The waste silk is the raw silk and it has a smooth feel with some bumps and a low luster.</p> | |
| 4045. |
Ona1. Consider the following two equationsm, rand(B) dMIn a noninertial frame(a) both are correct(c) A is correct but B is wrong(d) B is correct but A is wrong(b) both are wrong |
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| 4046. |
31. Find the momentum of a body of mass 100 g having a kinetic energy of 20 Jof 2 m32 Tuio cbioe |
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| 4047. |
constitutethissystem5.What prevents the blood from going in the wrong direction in the heart?thent and pulse rate? |
| Answer» <p>The tricuspid and mitral valves lie between the atria and ventricles. The aortic and pulmonic valves lie between the ventricles and the majorbloodvessels leaving theheart. Theheartvalves work the same way as one-way valves in the plumbing of your home. Theyprevent blood from flowing in the wrong direction.</p> | |
| 4048. |
aredierentJWho is correct? Explain.thereDid you observeduck finds its foodthergroup.e ducks swimming silently in the pond. Write how theswimmiA) |
| Answer» <p>Ducksusetheirbeaks to detect, grab and swallowfoodin one big gulp. They also use it to filter out excess water and inedible objects, leaving onlytheirintended meal. The kind offoodaduckeats is largely dependent on the shape, size and ability ofitsbeak.</p> | |
| 4049. |
Ate they Antibodies wiAttack sPelns |
| Answer» <p>Some antibodies will cause sperm to stick together or agglutinate. Agglutinated sperm clump together in dense masses and thus are unable to migrate through the cervix into the uterus. Other antibodies mark the sperm for attack by Natural killer (NK) cells of the body's immune system (ie; opsonizing antibodies).</p> | |
| 4050. |
Whavare alkane |
| Answer» <p>Alkanes</p><p>Alkanesare the simplest organic compounds consist of only hydrogen and carbon bonded with only single bonds between carbon atoms. The general chemical formula of alkanes is calculated by CnH2n+2. Alkanes are also called as saturated hydrocarbon which includes monocyclic or polycylic molecule.</p><p>Types of Alkanes and Examples</p><p>There are three types of chemical structure of alkanes known such as linear, branched, and cyclic alkanes.</p><p>Linear alkanesshould have the carbons bonded together in a chain-like structure, which is similar to a snake or rope. The following are some examples for linear alkanes.</p><p>Branched alkanescan form linear alkanes but instead of having just a straight chain in their chemical structure, and branched with one or more alkyl groups. Analkyl groupis a group of carbon and hydrogen atoms attached to an alkane molecule.</p><p>The following are some examples for branched alkanes.</p><p>Here we can see that the alkane chain has branches of alkyl groups (methyl group).</p><p>Cyclic alkanesor cycloalkanes contain the hydrogen and carbon atoms bonded together with single bonds, where the carbon atoms bond together to form a ring or loop.</p> | |