Question # 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

Pressure of fluid will be low where speed of fluid is.

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Low

Zero

High

Constant

The wavelength of wave produced by microwave oven is.

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12 cm

12 m

18 m

18 cm

Information carrying capacity of optical fibre called.

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Capacity

Band width

Immunity

Ability

The types of optical fibres are

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Three

Four

Five

Six

If the temperature of sink is absolute zero then the efficiency of heat engine engine should be.

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100%

50%

Infinite

zero

At which of the following temperature a body has maximum internal energy.

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-273 ^oC

0 K

273 K

-273 K

The actual efficiency of property turned petrol engine is.

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20% to 30%

30% to 35%

40% to 45%

25% to 30%

The dimension of power is

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MLT-1

ML2T-2

ML2T2

ML2T-3

the acceleration along x -axis direction in case of projectile is.

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Zero

Equal to gravity

Maximum

Constant

--------- is area of physics

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Chemical physics

astrophysics

Mechanics

None of these

Torricelli's theorem is given by

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A body rotating with angular velocity of 2 radian/s and linear velocity is also 2 ms-1, then radius of circle is.

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1 m

0.5 m

4 m

2 m

As we go from pole to equator of earth, the value of 'g'

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Increase

Decrease

Remain constant

Zero

Light waves are

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Longtail waves

Transvers waves

Stationary waves

Mechanical wave

The produce oscillation, body is pulled away from its

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Mean position

Extreme position

Both a and b

None of these

The unit of energy is same as that of

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Power

Work

Torque

Density

Who did give the correct formula for the speed of sound in air?

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Boyle

Laplace

Newton

Einstein

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