Question # 1

The work done moving a body between two points in a conservation field is independent of the:

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Direction

Force applied

Path followed by the body `

Power

Each atom in a metal crystal vibrates about a fixed point with an amplitude that:

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Decrease the rise in temprature

Is not affected by rise in temprature

Increase with rise in temprature

Both (B) and (C)

None of these

Scalar product is also called:

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Cross product

Dot product

Product scalar

Product vector

The units of modulus of elasticity are

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Nm^-2

Nm

ms^-1

Pascal

The direction of the linear momentum is the direction of

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speed

velocity

weight

none of them

The SI unit of flux density is

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Newton/Amp-meter

Newton-m/Ampere

Newton-m/Amp²

Newton-Amp/meter

Majority charge carriers in the p-region of p-n junction are:

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electrons

positrons

Holes

Neutrons

None of these

A (100 W , 200 W) bulb is connected to a 160 V power supply. The power consumption would be

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64 W

80 W

100 W

125 W

The wave form of S.H.M will be

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square wave

sine wave

rectified wave

saw-tooth wave

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

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4 : 5

7 : 9

16 : 25

1 : 1

The force which maintain the strict long-range order between atoms of a crystalline solid is the:

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Nuclear force

Cohesive force

Adhesive force

Coulomb force

None of these

The sum of all energy of all molecules atoms in an object is known as

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Temperature

Entropy

Internal energy

None of these

Fluid friction of a spherical body depend on the

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Shape

Size

Orientation

All of these

Stress beyond which a permanent deformation is observed in a body is called

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Minimum stress

Maximum

Yield stress

Plastic stress

Newtons laws are suitable, for as compared to velocity of light

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Low speed

Very low speed

Very high speed

None of these

If we keep the moment arm constant and increase the applied force, then the torque will

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remain the same

decrease

increase

all of them

In case of streamed lined flow of liquid.the loss of energy is

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Maximum

Minimum

Infinite

Equal to what is in turbulent flow

The motion of a body in a straight line is the motion in

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one dimension

two dimensions

three dimensions

four dimensions

How much water a pump of 2kW can raise in one minute to a height of 10 m.take g = 10 m/s²?

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1000 liters

1200 liters

100 liters

2000 litre

Newtons first law of motion is also known as

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Law of motion

Law of mechanics

Law of inertia

None of these

Diffraction of light occurs, due to the interference between rays coming from the same wavefront of

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The same parts

The different parts

Mixed rays

None of these

A 100W, 220V bulb is operated on a 110V line, the power consumed is:

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25W

75W

50W

100W

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