Question # 1

In red light is used as compare to blue light then fringe spacing.

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Decreases

Remain same

Increases

Becomes zero

When the rocket moves away from the earth, the work against gravity

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Remains constant

Varies directly with distance

Varies inversely with distance

Varies inversely with square of distance

If the temperature of a gas is constant then <1/2 mv2> of the molecules of gas will be.

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Constant

Zero

Increase

Decrease

The units of magnifying power of microscope or telescope are.

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Metre

m^-1

dioptre

No unit

The mechanism of transports energy of all the waves is

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Different

Same

Complicated

Easy

The relation between the speed and hoop can be written as

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2

4

1/2

1/4

The pitch of sound deepens upon

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Intensity of sound

Loudness of sound

Wavelength of sound

Frequency of sound

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

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Dark

Blue

Bright

Red

Time period of simple pendulum depends upon

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Mass of pendulum

Weight of pendulum

Length of pendulum

Shape of pendulum

A spring of spring constant 10 N/m after loading that amplitude is 2m. Then the maximum P.E. is

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10 J

20 J

30 J

40 J

In transverse waves the particles of medium vibrate

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Along the direction of wave

Opposite to direction of wave

Perpendicular to direction of wave

Slowly

The equations of angular motion hold only in case when the axis of rotation is

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Moving

Fixed

Both a and b

None of these

Let A = Area of cross section of pipe, v = speed of fluid, then 'Av' is called.

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Volume flow rate

Energy flow rate

Mass flow rate

Pressure flow rate

Radar system is an application of.

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Chemical effect

Electric effect

Magnetic effect

Doppler's effect

The dimensional of potential energy per unit volume are same as that of.

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Work

Pressure

Speed

Density

Newton's rings are formed due to phenomenon of.

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Interference

Dispersion

Diffraction

Polarization

The frictional effect between the different layers of fluid is called

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Terminal velocity

Stock's law

Viscosity

Surface tension

The shape of trajectory of short range projectile is

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Straight line

Circle

Elliptical

Parabolic

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Physics Fsc Part 1 Online Test MCQs With Answers

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