Question # 1

The study of fluid dynamics is

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Easy

Complicated

Impossible

None of these

Light entering rom air glass does not change in its.

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Frequency

Wavelength

Velocity

Direction

Unit of impulse is equivalent to that of.

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Force

Momentum

Acceleration

Velocity

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

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Increase

Decrease

Remain constant

Zero

The formula of centripetal acceleration is

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Fringe spacing is inversely proportional to.

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Wave length

Slit separation

Distance between the slit and screen

Frequency of light

The molecules of an ideal gas exert

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Force on each other

No force on each other

Large force on each other

Pressure on each other

The speed of sound in air would become double than ots speed at 10^oC at a temperature of.

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313 ^oC

586 ^oC

859^oC

899 ^oC

A constant temperature, if pressure of a given mass of gas is halved, then its volume becomes.

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Halve

Doubled

Four time

Constant

For maximum range the angle of projection must be

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30^o

45^o

60^o

90^o

10 waves pass through a point in 2 seconds with speed 10 ms-1 the frequency of wave will be

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1 Hz

2 Hz

5 Hz

10 Hz

The distance covered by wave in 1 sec is

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wavelength

Wave number

Wave speed

Frequency

When the amplitude of a wave is increase to doubled is energy.

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Remain the same

Increases 4 times

Increases by two times

Decreases by half

The formula for the power is

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P= W/d

P=W/v

P=W/t

P=Wt

Which is not the essential component of a spectrometer.

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Collimator

Telescope

Turntable

Microscope

If a body is moving in the counter clockwise direction the direction of angular velocity will be

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Toward the centre

Away from the centre

along the linear velocity

Perpendicular to both radius and linear velocity

The motion of a body moving along a circular path is called.

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Translational motion

Angular motion

Vibratory motion

Linear motion

Which one of the following force cannot do any work on the particle on which it acts.

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Fractional force

Gravitational force

Electrostatic force

Centripetal force

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