Question # 1

According to first law of thermodynamics the quantity which is conserved.

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Force

Momentum

Energy

Power

A body of mass 2 kg moving with velocity of 4 ms-1 has K.E. equal to.

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16 J

8 J

32 J

2 J

the acceleration of a body having SHM, depends upon its.

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Time period

Amplitude

Frequency

Displacement from mean position

The state of human blood flow can be found by using.

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Newton's formula of speed of sound

Interference of sound

Phenomena of beats

Doppler's effect of sound

Energy dissipated usually appears as

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P.E.

Heat Energy

Chemical energy

Nuclear Energy

The regular or steady flow of fluid is called

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Stream line

Turbulent flow

Average flow

None of these

2 radian = ____

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2 m

4 m

57.3 m

114.6 m

The maximum range of projectile is 100 km, Take 9=10 ms-2, the initial velocity of the projectile will be.

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1000 kms-1

1 kms-1

10 kms-1

100 kms-1

If the slope of the velocity time graph remain constant then body is moving with.

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Uniform velocity

Negative variable acceleration

Variable acceleration

Uniform acceleration

Angle between ray of light and wave front is

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0 ^o

60 ^o

90 ^o

120 ^o

The speed of sound increases with the increase of in

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Pressure

Volume

Temperature

Density

An oil film on water surface shows colour due to.

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Diffraction

Interference

Polarization

Dispersion

Information carrying capacity of optical fibre called.

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Capacity

Band width

Immunity

Ability

The unit of energy is same as that of

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Power

Work

Torque

Density

The SI units of solid angle is

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Streadian

Radian

Degree

None of these

Viscosity is represented by Greek letter

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A layer over the central core of the jacke is called.

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Jacket

Plastic

Cladding

Rubber

The motion of a simple pendulum is the example of

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Vibratory motion

Rotatory motion

Periodic motion

Both a and c

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