Question # 1

Standard metal according to Michelson's interferometer is equivalent to

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1553163.5 wave meter

3 x 108meter

15503000 meter

None of these

The value of solar constant.

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1.4 kW m-2

1.0 kW m-2

1.6 kW m-2

2 kw m-2

Angle between ray of light and wave front is

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0 ^o

60 ^o

90 ^o

120 ^o

Efficiency of steam locomotive is.

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8%

10%

9%

7%

Torricelli's theorem is given by

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Apparent weight of a man is in upward accelerated lift will

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Increases

Decreases

Remain same

Increases then decrees

Second pendulum has a time period

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1 sec

3 sec

2 sec

4 sec

When newton ring are seen through the transmitted light, then central spot is.

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Dark

Blue

Bright

Red

Opted unit to measure blood pressure is.

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N/m2

Pascal

mm of Hg

N.m2

The distance covered by wave in 1 sec is

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wavelength

Wave number

Wave speed

Frequency

Angular velocity determines, How fast or, How slow a body is

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Accelerating

Vibrating

Rotating

Oscillating

When body acquires terminal velocity them its acceleration 'a' becomes.

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a = 0

a = g

a > 0

a < 0

A paratooper moves downward with

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Zero acceleration

Constant acceleration

Positive acceleration

Negative acceleration

The distinguish between transverse and longitudinal wave_______ is used.

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Refraction

Interference

Diffraction

polarization

In S.H.M, the acceleration of the body is directly proportional to

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Weight of body

Applied force

Amplitude

Displacement

The unit of work in base unit is

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Kg m-1 sec-2

Kgm sec-2

Kgm2 sec-1

Kgm-1 sec-1

Michelson's interferometer can be used ot find the

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Velocity of light

Wavelength of light

Velocity of sound

Wavelength of sound

Two quantities involved in work are

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Force and speed

Force and velocity

Force and displacement

Force and acceleration

3 Joules of work id done is 3 seconds, then power

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6 Watt

1 Watt

3 Watt

2 Watt

No spark plug is needed in the

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Petrol engine

Diesel engine

Gas engine

Water engine

The direction of vector in space is specified by

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1- angle

2- angle

3- angle

4 - angle

The unit of solar light inversely is

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Watt

kW m-2

Watt m-2

1 m2

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