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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.
| 5651. |
for a given mass and size, moment of inertia of a solid disc is smaller than that of ring, why? |
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| 5652. |
Explain how the Newton \'s first law of motion follows from the second law of motion. |
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| 5653. |
what us the law of limiting friction |
| Answer» Laws of limiting\xa0friction:\xa01. The direction of limiting frictional force is always opposite to\xa0the direction of motion.2. Limiting friction acts tangential to the two surfaces in contact.3.The magnitude of limiting friction is directly proportional to the normal reaction between the two surfaces.4. The limiting friction depends upon the material, the nature of the surfaces in contact and their smoothness.5. For any two given surfaces, the magnitude of limiting friction is independent of the shape or the area of the surfaces in contact so long as the normal reaction remains the same. | |
| 5654. |
define equilibrium of concurrent forces |
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| 5655. |
What is mean by watt |
| Answer» Si units of power | |
| 5656. |
What is weightlessness |
| Answer» Means their is no gravitational force acting on you | |
| 5657. |
Solve 25.21÷60.84 showing divide |
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| 5658. |
What is the relation between coefficient of restitution and loss in kinetic energy |
| Answer» Coefficient of restitution is directly proportional loss in ke (greater the restitution higher loss in ke) | |
| 5659. |
Second law of motion is a true law |
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Answer» Yes ,because 2nd law of newton derived the newton 1st and 3rd law of motion Yes,because third and first law derived from it |
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| 5660. |
What is the difference between limiting and static friction...?? |
| Answer» Static friction is acting due to the body tends to move when a force is acting on it. Limiting friction is the friction acting on a body when it is about to start moving. | |
| 5661. |
What is relative velocity and relative speed |
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| 5662. |
What is a vector |
| Answer» A physical quantity which has both magnitude and direction | |
| 5663. |
define cofficient of restitution |
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| 5664. |
find the work done by force f=(3x squer -7)N in displacing on object from (0,1,1) to(1,0,0).. |
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| 5665. |
Laws of conservation momentum? |
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| 5666. |
speed of a car on national highway is 30ms-1. express its value in kilometre per hour (KMPH) |
| Answer» to convert m/s into km/h 30×18/5=108 | |
| 5667. |
A freely falling body takes \'t\' second to travel first (1/x)distance. Then, time of descent is |
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| 5668. |
A freely falling body takes\'t\' second to travel first (1/x)distance .Then time of descent is |
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| 5669. |
the maximum height H and time of flight T related as |
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Answer» H=u2sin^2○ and T=2usin○ from this H/T=1/4usin○,4H=Tusin○ H=u2sin2○/2g and R=u2sin2○/g from this H/R=1/4 tan○,4H=Rtan○ |
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| 5670. |
a body of mass 1 kg through with velocity Route 3î+j^ the body splits |
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| 5671. |
Write derivation of circular acceleration |
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| 5672. |
what is radius of gyration?? |
| Answer» The distance from the axis of rotation at which the whole mass of body were concentrated its moment of inertia about the given axis.....hope this is helpful for u | |
| 5673. |
Escape speed? |
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| 5674. |
Mfsgf |
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| 5675. |
V=u+d/t+ a ,solve this equation |
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| 5676. |
b=(vt)2 ,solve this equation |
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| 5677. |
At what angle the two forces A+B and A-B act, so that their resultant is √3A^2+B^2 ? |
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| 5678. |
Velocity=under root 180 -16xfind Acceleration |
| Answer» V=root180-16xA=dv/dtA=d/dt(√180-16x)A=16 | |
| 5679. |
Paralleogram vector law derivation |
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| 5680. |
What is mean by obsolute zero |
| Answer» The lowest temperature that is theoretically possible,at which the motion of particles which constitutes heat would be minimal.It is zero on the Kelvin scale , equivalent to -273.15 degree Celsius. | |
| 5681. |
What is. Fractional force |
| Answer» Sorry I can write the answer in comment box | |
| 5682. |
A force |
| Answer» Do you want the definition of force?.... If yes then please ask... | |
| 5683. |
What is linear magnifications and formula |
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| 5684. |
1 autonomical unit equal to |
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| 5685. |
acceleation |
| Answer» Change in velocity w. r. t Time | |
| 5686. |
How to identify whether capacitors are connected in series or parallel? |
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| 5687. |
Define del is equal plus vat from velocity time graph . |
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| 5688. |
Intensity of gravitational field definition |
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| 5689. |
Important derivations of gravitation |
| Answer» Newton\'s lawGravitational potential energyEscape velocityvelocity required by a satellite | |
| 5690. |
What is tensile strength |
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Answer» Tensile strength, is the\xa0maximum load that a material can support without fracture when being stretched, divided by the original cross-sectional area of the material. Tensile strengths have dimensions of force per unit area Tensile strength is a measurement of force reQuired tO pUll sOmetHing such as rope, wire |
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| 5691. |
How to find angle of projection for a given height and velocity aî+bj^ |
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| 5692. |
What is pressure |
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Answer» Force/area SI unit of pressure is Pascal ( pa ) Force exerted on surface per unit area |
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| 5693. |
State and prove work energy theorem for constant force? |
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Answer» Work energy theorem For constant force it can be derived as:V^2 - u^2 = 2asDividing the equation by m/2MV²/2-mu²/2=masChange in kinetic energy=Fs=W Sorry but I m unable to write this proof b/c it takes a lot of tym in typing....but this proof is given in ur book |
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| 5694. |
What is the angle between force of friction and velocity of a body moving on a rough surface? |
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| 5695. |
Is it is possible that a body is in rest but it has an acceleration |
| Answer» It is possible that a body is in rest but it has an acceleration ,we can show it by following examples:-1. When you through a ball upside and when it reaches the top it pauses for a moment. At this moment, the velocity is zero but the ball still has acceleration and that acceleration is due to acceleration due to gravity. Thus at the peak, the velocity is zero but the object is still accelerating.2. Second example can be discussed in the case of pendulum. When a pendulum moves, and when it reaches the extreme positions its velocity is zero but its still accelerating due to gravity. | |
| 5696. |
Explain why steel is more elastic than rubber? |
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Answer» Elasticity is the capability of an object to return to its former shape once a load inducing strain is removed. If you were to drop a steel ball on a very hard surface, it would probably bounce higher than that of rubber. If you drop it on a softer surface, because it would deform less, then the surface it is to bounce off will be the one deforming, so the bounce would be a function of the elasticity of the floor, not of the ball. A strand of silk is indeed stronger than a steel wire of the same diameter. The reason is that metal uses metallic bounds which is not as strong as the covalent bounds in a macro-molecule like the ones in silk. Young\'s Modulus of steel is more than young\'s modulus of rubber.So steel is more elastic. As steel a metal shows the property of malleability and ductility but rubber is a non metal which is brittle in nature |
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| 5697. |
RAdius of spherical ball is 4.32+-0.01cm.calculate the percentage error to estimate measurem |
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| 5698. |
Define the term impulse |
| Answer» The term "impulse" is also used to refer to a fast-acting force or impact.Impulse is the change of momentum of an object when the object is acted upon by a force for an interval of time, you can use impulse to calculate the average impact force of a collision. | |
| 5699. |
State keleper\' s law of planetary motion? |
| Answer» Kepler’s three laws of planetary motion are stated as follows:(1) All planets move about the Sun in elliptical orbits, having the Sun as one of the foci.(2) A radius vector joining any planet to the Sun sweeps out equal areas in equal lengths of time.(3) The squares of the sidereal periods (of revolution) of the planets are directly proportional to the cubes of their mean distances from the Sun. | |
| 5700. |
What is parallel axis theorem ? |
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