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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.
| 7451. |
The SI unit of energy is..... |
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Answer» Jule?????? Joule Joule |
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| 7452. |
Why don\'t gravitational force have a repulsive nature |
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Answer» Gravitational force is attractive force. And as we know that attraction is the opposite of repulsion. So gravitational force is not repulsive in nature because a force can\'t have both nature. Because the meaning of gravitation is attractive forces only.So here we consider attractive force. The nature of gravitational forces are attractive not repulsive.. |
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| 7453. |
Derive the expression for moment of inertia of hollow cylinder |
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| 7454. |
Can you please explain the derivation of kinetic energy |
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| 7455. |
At what depth the value of g reduced to 25% from its value on earth surface |
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| 7456. |
Working of hydraulic brakes? |
| Answer» Hydraulic brakes are used in automobiles | |
| 7457. |
Explain strech-strain curve? |
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| 7458. |
Proof that Cp is greater than Cv |
| Answer» Cv=dU÷ dT but Cp is dU÷dT + PdV and also Cp= Cv+R but Cv =Cp - R. So Cp>Cv. | |
| 7459. |
What would happen to earth if the sun is replaced by a black hole of same mass? |
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Answer» Then black hole absorb the earth Earth will not rotate |
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| 7460. |
Related question to stress |
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| 7461. |
What is dimensional formula of torque |
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Answer» M1L2T-2 M^1L^2T^-2 is the dimensional formula of torque. Torque=f*r*sin(theta),Force=ma=MLT-2r=LTorque=ML2T-2 ML2T-2 |
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| 7462. |
A body is moving along a horizontal circular path.how much work is done by the weight? |
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Answer» Ek baat btao k circle bhi kbhi horizontal hota hai Work done is 0 bcz. In this case displacement is zero so product of F.dx is 0. Work done=0 |
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| 7463. |
Si unit of mass |
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Answer» Kg Kilogram Kilogram us the S.I unit of mass. Kg Kilo gram (kg) Kg |
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| 7464. |
How can we calculate pressure inside a bubble? |
| Answer» P=4S÷R | |
| 7465. |
What wiil happen if a weight is put in the water |
| Answer» When a body is partly or completely immersed in water (or any other liquid), then: Loss in weight of body = Weight of water (liquid) displaced by the body = Buoyant force or upthrust exerted by water (any liquid) on the body.There will be loss in the weight of the body. | |
| 7466. |
What are the types of thermodynamics |
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| 7467. |
What is the value of 1atm? |
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Answer» 101.14 Yoga is |
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| 7468. |
Hydraulic brake working. |
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| 7469. |
Why Cp is greater than Cv. Give reason. |
| Answer» When gas is heated at constant volume no work is done and all the heat goes in raising the internal energy & thus temp. Of gas but when the gas is heated at constant pressure some part of heat is used in doing work in expanding gas -& the remining will increase the internal energy & hence temp. Therefore more heat is required to raise a given temp. Than that of constant volume process.. | |
| 7470. |
why it is easier to pull to push alon roller |
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| 7471. |
What is terminal velocity ? |
| Answer» When body is falling from height .and net external force is attain 0 then terminal velosity is achived. | |
| 7472. |
, what is equilibrium |
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Answer» When the rate of forward reaction is equal to rate of backward reaction then the equilibrium is formed The state of a chemical or physical rxn in which forward and backward rxn occur at equal rate so that the concentration of reactant and product do not change with time . Also called dynamic equilibrium |
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| 7473. |
What about step marking |
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| 7474. |
Black body |
| Answer» Absorber of radiation | |
| 7475. |
What is in thermometer red like somethings |
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| 7476. |
What is gauge pressure? |
| Answer» Diffrence between absolute pressure and atmosphearic pressure. | |
| 7477. |
elasticity |
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Answer» The energy gain by a body by the virtue of its motion. If a body regain its original size and shape after the removal of deforming force is called its elasticity what kinetic energy |
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| 7478. |
Find the expression for potential at a point \'h\' due to earth. |
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| 7479. |
What is Deforming force |
| Answer» By applying a force we can change shape and size of body is called deforming force | |
| 7480. |
What is sencer |
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| 7481. |
Why the work done by centripetal is zero |
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Answer» Becoz displacement is 0 As the\xa0centripetal force\xa0acts upon an object moving in a circle at constant speed, the\xa0force\xa0always acts inward as the velocity of the object is directed tangent to the circle. This would mean that the\xa0force\xa0is always directed perpendicular to the direction that the object is being displaced. |
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| 7482. |
What do you mean by escape velocity |
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Answer» The minimum velocity required to through an object such that it never comes back. The minimum velocity req to throw a object vertically upwards so that it never returns back |
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| 7483. |
Give examples of streamline flow and turbulent flow? |
| Answer» A tap when we turn it minimum water will flow uniformly at some point then it becomes turbulent | |
| 7484. |
What is psudo force? |
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Answer» Hidden force pseudo actually means "fictitious or false" hence this is a actually a false force. for eg when we are in a car which is at rest and suddenly the car is accelerated then we say that due to inertia of rest we experience a force backward and hence move back.. this is also due to pseudo force that acts on us opposite to the direction of motion of the car. |
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| 7485. |
Why are we advised to store medicine below 86°F? |
| Answer» For keeping it stable. | |
| 7486. |
Why intensity of gravitational field is vector quantity |
| Answer» Because it have both value and direction. | |
| 7487. |
Why the gravitational field near the Earth\'s surface is nearly uniform |
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| 7488. |
Why thermodynamics taught in chemistry is totally different from thermodynamics taught in physics |
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Answer» Yes In chemistry we learn about applications of heat and enthalpy but in physics we learn working of engine ac etc. |
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| 7489. |
write the relation between electron volt and joule |
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| 7490. |
Ellipse of hyperbola |
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| 7491. |
What is the effect of temperature on the angle of contact of capillary tube |
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| 7492. |
Explain carnot heat engine briefly |
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| 7493. |
What are the limitations of Bernoulli principle ? |
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| 7494. |
Betnaulli theorem derivation and it\'s application |
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| 7495. |
Application of 1st law of thermodynamics to boiling of liquids |
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| 7496. |
What is the angle made by i+j with X axis |
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Answer» 45 degree 45 degree |
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| 7497. |
Hund,s law |
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Answer» It states that firstly the all subshells of the electrons were filled with one electrons and then pairing starts But according to its subshell properrt Every vacant shell should be filled sequencely |
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| 7498. |
Kainametics |
| Answer» Kinematics is available in physics | |
| 7499. |
What is potential energy spring with derivation |
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| 7500. |
What is the expression of vector form of newton law of gravitation? |
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