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.
| 3501. |
A vendor bought lemons at 12 for? 5 and sold them at 8 for5. His gain % is. |
| Answer» <p>hit like if you find it useful</p> | |
| 3502. |
A balloon is filled with hydrogen at roomtemperature. It will burst if pressureexceeds 0.2 bar. If at 1 bar pressure thegas occupies 2.27 L volume, upto whatvolume can the balloon be expanded? |
| Answer» <p>Using Boyle;s LawP1V1=P2V2If p1 is 1bar , V1 will be 2.27 LIf p2 = 0.2 barV2 = p1v1/p2 = 11.35 L</p> | |
| 3503. |
Magnesium and copper metals are, heated directiy over a flame, Which of the two will burn in the air ? |
| Answer» <p>Magnesium . because Mg is highly reactive than copper and react with air more readily.</p> | |
| 3504. |
10. What is neutralization? Yoäš |
| Answer» <p>In chemistry, neutralization or neutralisation, is a chemical reaction in which an acid and a base react quantitatively with each other. In a reaction in water, neutralization results in there being no excess of hydrogen or hydroxide ions present in the solution.</p> | |
| 3505. |
का S La®yv ey )n’ Whife ¢ name q e o रह 164 thede o (el whithy todomgenelic raatenial (alleast e ) 7, |
| Answer» <p>Mitochondria and plastids ( chloroplasts)</p> | |
| 3506. |
what is ball an soket joint |
| Answer» <p>Ball and socket joint is a natural or manufactured joint or coupling, such as the hip joint, in which a partially spherical end lies in a socket, allowing multidirectional movement and rotation.</p><p>Please hit the like button</p> | |
| 3507. |
no of waves for 3rd electron of lithium atom is |
| Answer» <p>The number of waves for 3rd electron of lithium atom are 2.</p> <p>Explanation</p><p>As in the case of helium, the increase in nuclear charge to +3 produces a correspondingreductionin the size of the lithium 1sorbital. In sharp contrast to this compact inner orbital is the very large and very diffuse cloud of the outer 2selectron. There are two reasons why this 2scloud is so large.The first reason is that the principalquantum numbernhas increased from 1 to 2.</p><p>Lithium's, 2selectron cloud is bigger than 1seven in the hydrogen atom with a nuclear charge of only +1. A second reason is that the two 1selectrons are usually closer to the nucleus than the 2selectron. These two 1selectrons have the effect ofscreeningorshieldingthe outer electron from the full attractive force of the +3 charge on the nucleus. When the 2selectron is some distance from the nucleus, it “sees” not only the +3 charge on the nucleus but also the two negative charges close by.</p><p> The overall effect is almost as though two of the three positive charges on the nucleus are canceled, leaving a net charge of + 1 to hold the outer electron to the atom. This situation can also be described by saying that theeffective nuclear chargeis close to +1.</p> | |
| 3508. |
snovial joint |
| Answer» <p> Ans :- Asynovial joint, also known as diarthrosis, joins bones with a fibrousjointcapsule that is continuous with the periosteum of the joined bones, constitutes the outer boundary of asynovialcavity, and surrounds the bones' articulating surfaces. Thesynovialcavity/jointis filled withsynovialfluid.</p> | |
| 3509. |
what is a joint |
| Answer» <p>A joint is usually formed of fibrous connective tissue and cartilage. Joints are grouped according to their type of motion: ball-and-socket joint; hinge joint; condyloid joint, which permits all forms of angular movement except axial rotation; pivot joint; gliding joint; or saddle joint.</p> | |
| 3510. |
Name the various types of joint. |
| Answer» <p>Ball and socket jointsPivotal jointsHingle jointsFixed joints Gliding joints </p> | |
| 3511. |
MBD74o What is the role of acid in our stomach ?(Đ.Đ. 2010, 2011 Set,0 2 |
| Answer» <p>Stomach acidplays an essentialrolein the immune system by killing harmful bacteria and parasites that are ingested with food.Stomach acidactivates the enzyme pepsin needed for protein digestion.Stomachacidsignals to the pancreas produce digestive juices and enzymes to further break down food.</p> | |
| 3512. |
(6) How many members were there in the Formation of Constitutional Commitee(A) 385(B) 545(C) 250D) 166 |
| Answer» <p>Ans :- Initially, its total membership was kept 389. After partition, the Constituent Assembly of India had 299 representatives. These included229 membersfrom provinces and 70 from princely states. There were total ninewomen members also.</p> | |
| 3513. |
2. How is a dam useful for generating electricity? |
| Answer» <p>Ans :- Mostdamsare built to control river flow, improve navigation, and regulate flooding. However, somedamsare built toproduce hydroelectric power. These areelectric turbines inside adam. Hydroelectric power isproducedas water passes through adam, and into a river below.</p><p>PLEASE LIKE THE ANSWER</p> | |
| 3514. |
d) of these4. In which one of these is air blown onto the sewage?(a) Grit chambers(c) Water tank(b) Aeration tanks(d) Septic tank |
| Answer» | |
| 3515. |
Why do ventricles have much thicker walls than auricles? |
| Answer» <p>Ventricleshavethicker walls thanatria and generate higher blood pressures. ... Further, the leftventriclehasthicker walls thanthe right because it needs to pump blood to most of the body while the rightventriclefills only the lungs.</p> | |
| 3516. |
The velocity of sound in air is taken as 332 m/s. If the pressure of gas is taken double.then what will be the velocity of sound in air ? |
| Answer» <p>v = 332 m/s, as there is no effect of change in pressure when temperature remains constant.</p> | |
| 3517. |
electrommagnet a permanent magnet |
| Answer» <p>The main advantage of an electromagnetover apermanent magnetis that themagneticfield can be quickly changed by controlling the amount of electric current in the winding. However, unlike apermanent magnetthat needs no power, an electromagnetrequires a continuous supply of current to maintain the magneticfield.</p> | |
| 3518. |
3.For a given resistance X in the figure shown the thermal power generated in'Y is maximum whenY 40. Then resistance X (in ) is:10V,20T60A series parallel combination af hatteres e |
| Answer» <p>Theremal power generated in Y will be maximum when maximum current flows through the circuit i.e for least resistance now 2+4 =6 ohm is fixed now so the value of the unknown resistance should be 6 ohm</p> <p>wrong</p> | |
| 3519. |
Why is waste not generated in a forest |
| Answer» <p>There is no waste in a forest because micro-organisms act on the wastes and convertthem to humus. This humus ensures that the nutrients are returned back to the soil.Please like the solution 👍 ✔️👍</p> | |
| 3520. |
Describe about the Solid Waste that degrades our environment. |
| Answer» <p>A society receives energy and raw material as inputs from the environment and gives solid waste as output to the environment. In the long-term perspective, such an input-output imbalance degrades the environment</p><p>These are non-biodegradable. Non-Biodegradable wastesare those that cannot break down or degrade for many years. These arewastethat cannot change into manure and they pile up causing pollution. Burning of these fuels causes more pollution in the environment. Thenon-biodegradable wastesbecome useful when they can be recycled.</p> | |
| 3521. |
When you open a doorWhat force do you exert on it? |
| Answer» <p>To open a door we either push or pull the door. We use muscular force in this case.</p> | |
| 3522. |
Describe an Activity to show that liquids exert equal pressure at same depth. |
| Answer» <p>Aim: to prove liquid exerts pressure</p><p>Materials required: a glass test tube with open end, balloon,water</p><p>Procedure: tie a balloon to the lower end of the test tube hold the tube vertically and pour some water into it. you will see the rubber membrane bulges out. now add more water the rubber membrane bulges more.</p><p>Conclusion: so this concludes that pressure exerted by a liquid increases with the height of the liquid column</p> | |
| 3523. |
describe an activity to show that liquid exert equal pressure at same depth. |
| Answer» <p>Take a plastic bottle in a tub , fill it with water,make 4 holes around the bottle at equal heights, we can see that water flows out with equal pressure from all holes. thus we observe that liquids exert equal pressure at same depth.</p> | |
| 3524. |
Single choice Objective (-1' negative marking) Q.1 to Q.20area, same height are filled with three different liquids of same mass asland ll r spevly then we na ihte force eerted by the liquid on the base of the container in case1.Three containers of same baseCase-ICase-I1Case-IIIFtho honzontal The instantaneous(A) F1 F2 F(B) Fi > F2>F(C) F3> F2>F(D) F2 <F |
| Answer» <p>option dD is correct</p><p>because in case , the liquid at the inclined surface will also contribute to the downward pressure.. , because it will have vertical component in the downward direction. that will add up to existing pressure</p> | |
| 3525. |
9. If you push a heavy box which is at rest, you must exert some force to start itsmotion. However, once the box is sliding, you can apply a lesser force to maintainthat motion. Why? (AS |
| Answer» <p>It is because of inertia of motion.That is, when a body is moving it has a tendency to remain in that state.For example,when you are cycling after pedaling for some time ,you stopped pedaling.But the cycle does not stop at once because of inertia of motion.Only after it goes some distance does it stop.This same thing happens when you are pushing a box.</p> | |
| 3526. |
Construct a triangle ABC in which AB = 7 cm, <A = 450 and <C = 75。 |
| Answer» | |
| 3527. |
ĺ// ntodvar ,ione)ret |
| Answer» <p>You mean vectors right ?</p> <p>Yes</p> <p>Vector is a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another.</p> <p>No it is vactons</p> | |
| 3528. |
4. Why is intake of more fat than carbohydrates in diet not advisable ? |
| Answer» <p>Because it can impact your body </p> | |
| 3529. |
Explain two examples from our everyday life based on Newton'sThird Law of Motion. |
| Answer» <p>motion are ubiquitous ineverydaylife. Forexample, when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.Engineers applyNewton's third law when designing rockets and other projectile devices.</p> | |
| 3530. |
Which change would increase the rate of weathering of a rock on Earth's surface? |
| Answer» <p>Arock'sexposure to theweatheringelements and itssurfaceareacanaffect itsrate of weathering.Rocksthat are constantly bombarded by running water, wind, and other erosion agents,willweather more quickly</p> | |
| 3531. |
1.S.I.ETU- (S.1 unit of pressure will be )(Pascal) (B) (Newton) (C)(A)(Maxwell)(D) 37 (Erg) |
| Answer» <p>the si unit of pressure is pascal</p> | |
| 3532. |
hydrogen bom follow which process |
| Answer» <p>Hydrogen bomb is based on nuclear fusion</p> | |
| 3533. |
which process follow atom bom |
| Answer» <p>Atomic bombsusenuclearfission which splits the nuclei of plutonium and/or uranium into smalleratoms.</p><p> When neutrons, or neutral particles, of theseatomsare split, they hit the nuclei of other nearbyatoms, which in turn causes them to split.</p> | |
| 3534. |
a. What causes Tuberculosis? |
| Answer» <p>Tuberculosis is caused by bacteria that spread from person to person through microscopic droplets released into the air.</p> | |
| 3535. |
2.Which of the following complexes is diamagnetic?(A) K,INiF,J(B) [NiNH)dC, (C) [Ni(en), S,OD) of these |
| Answer» <p>option a</p><p>It is a diamagnetic complex, Inspite of presence of weak field ligand there occurs forced pairing due to more effective nuclear charge of Ni4+ cation. This complex is d2sp3 hybridised</p> | |
| 3536. |
a slowest steps in reaction mechanism is called |
| Answer» <p>Inkinetics, the rate of a reaction with several steps is determined by the slowest step, which is known as the rate-determining, or rate-limiting, step.</p> | |
| 3537. |
convert newton into joule |
| Answer» <p>A joule (J) is a unit of energy and a newton (N) is a unit of force.These units areNOTinterchangeable.</p><p>1 newton is the force needed to accelerate 1 kilogram of mass at the rate of 1 meter per second squared (1 N = 1 kg⋅m/s^2)</p><p>A joule is equal to the energy transferred (or work done) to an object when a force of one newton acts on that object in the direction of its motion through a distance of one meter (1 newton meter or N·m)</p> <p>ty </p> | |
| 3538. |
s. 1 calorie is equal to.....................joule. |
| Answer» <p>1 calorie= 4184 joule</p> <p>but something else is given in the option</p> <p>what is given in option</p> <p>a. 2.186b. 4.186c. 4.212d. 2.456</p> | |
| 3539. |
JONICOSI(u supra5. Which of the following is a mixture?(a) Carbon dioxide (b) Sulphur(c) Nitrogen(d) Air |
| Answer» <p>thanks</p> <p>air is a good mixture of the following</p> <p>answer is d option air mixture into different gases</p> <p>Air is a mixturebecause it consists of several gases that are able to be separated by physical means (different temperatures of liquifaction permitting fractional distillation). ... Wikipedia: By volume, dryaircontains 78.09% nitrogen, 20.95% oxygen, 0.93%argon, 0.04% carbon dioxide, and small amounts of other gases.</p> | |
| 3540. |
What causes Tuberculosis? |
| Answer» <p>Tuberculosis is caused by bacteria that spread from person to person through microscopic droplets released into the air. This can happen when someone with the untreated, active form of tuberculosis coughs, speaks,sneezes, spits, laughs or sings. Although tuberculosis is contagious, it's not easy to catch.</p> | |
| 3541. |
. What causes friction? |
| Answer» <p>CausesofFriction.Frictionis a force that resists the relative motion between two objects or materials. Thecausesof this resistive force are molecular adhesion, surface roughness, and deformations. Adhesion is the molecular force resulting when two materials are brought into close contact with each other.</p> | |
| 3542. |
MULTIPLE CHOf the following molecule involves) Which of the followinelectrovalent bond?(a) H2(c) CaCl2(b) CH,(d) HChon is eynlained by its |
| Answer» <p>C </p> | |
| 3543. |
2. Name two materials that we can see through. |
| Answer» <p>na</p> <p>short answer two materials that we can see through </p> <p>Glass, ice, transparent sheet</p> <p>glass, bottle,transparencysheet, light bulb, thermometer, beaker, ice, spectacles</p> <p>glass bottle ,beaker, transparent sheet</p> <p>the material are transparent material </p><p>ex:air,glass,water is partiall,</p> | |
| 3544. |
QuestionsName two materials which are nonconductor of electricity |
| Answer» <p>glass, air,plastic,rubber, andwood.</p> <p>ok</p> | |
| 3545. |
5. Name two materials that can be used as filter during filtration. |
| Answer» <p>Charcoal and carbon can be used for filtration.</p> <p>thanks</p> | |
| 3546. |
SOLID STATEsolid is made of two elements P &Q. Atoms of Q are in c.c.p. arrangement while atoms ofe tetrahedral sites. What is the formula of the compound? |
| Answer» | |
| 3547. |
describe the work of an eletric bell with the help of a diagram . |
| Answer» <p>An electric bell contains an electromagnet, consisting of coils of insulated wire wound round iron rods. When an electric current flows through the coils, the rods become magnetic and attract a piece of iron attached to a clapper. The clapper hits the bell and makes it ring.</p> | |
| 3548. |
(j) Why was her Mama so worried?IL. Describe the houses in Mumbai in Nandita's words: |
| Answer» <p>kindly mention the name of chapter</p> | |
| 3549. |
Name few more tall animals. |
| Answer» <p>Goliath Beetle. ...</p><p>Chinese Salamander. ...</p><p>Ostrich. ...</p><p>Saltwater Crocodile. ...</p><p>Whale Shark. ...</p><p>Brown Bear. ...</p><p>Giraffe. ...</p><p>African Elephant.</p> | |
| 3550. |
Where do domestic animals live? |
| Answer» <p>Domestic animals live in care of people </p> | |