Question # 1

the wavelength of transverse wave travelling with a speed 'v' having frequency 'f' in equal to

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f/v

Vf

V/f

f/V2

Rate of change of displacement is called

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Speed

Velocity

Kinetic energy

None of these

If the pressure of a gas is doubled, then speed of sound is.

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Doubled

Become half

Not affected

Increases by four times

Blood pressure is measured by

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Hydrometer

Barometer

Sphygmomanometer

Galvanometer

The ratio of size of image and size of object is

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Focal length

Magnification

Resolving power

Principle focus

Carnot cycle consists of.

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Two steps

Three steps

Four steps

Five steps

Temperature of a gas is increased from 27 oC to 127 oC. The ratio of its mean K.E. will be

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3/4

9/16

4/3

10/9

Efficiency of steam locomotive is.

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8%

10%

9%

7%

A typical diffraction grating has certain number of lines per centimeter whose range is.

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40 to 50

400 to 5000

400 to 500

4000 to 5000

A body of mass 1.0 Kg dropped from the top of a tower of highest 50 m, what will be its K.E. 10 m below the top

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400 J

490 J

49 J

98 J

The periodic variations of sound between maximum and minimum loudness are called.

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Doppler's effect

reflection

Laplace correction

Beats

The number 64.350 is rounded off as

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64.4

64.46

63.35

64.36

Engineering physics, Astrophysics,Bio Physics and Geophysics are

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Branches of Physics

Branches of Chemistry

Applied Physics

None of these

When two identical travelling waves are superimposed, velocity of resultant wave.

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Decreases

Increases

Remain same

Becomes zero

The largest satellite system is managed by

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116 countries

126 countries

136 countries

140 countries

The final image formed by a simple microscope.

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Virtual and inverted

Real and erected

Virtual and erected

Real and inverted

First law of thermodynamics can be defined by the equation

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

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Accelerating

Vibrating

Rotating

Oscillating

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