Question # 1

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

If 30 waves per second pass through a medium at a speed 30 ms-1, then the wavelength is.

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30 m

15 m

1 m

28 m

the distance covered during one vibration of an oscillating body in terms of amplitude 'A' is

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A/2

A

2A

4A

No body begins to move or comes to rest of itself was given by

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Newton

Pascal

Bernoulli

Bu Ali Sina

The largest satellite system is managed by

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116 countries

126 countries

136 countries

140 countries

When temperature of source and sink of a heat engine becomes equal then the entropy change will be.

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zero

Minimum

Maximum

Negative

A force applied on a body produces acceleration in

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Opposite direction

perpendicular direction

Its own direction

In any direction

1 KWh =

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3.6 x 10³K

3.6 x 10⁶K

3.6 x 10⁹J

3.6 x 10¹²J

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 collision between the gas molecules is

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Elastic

Inelastic

Both a and b

None of these

When two waves of same frequency travel in opposite direction, the phenomenon will be

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Diffraction

Stationary waves

Polarization

Interference

A mass of 1 kg is freely falling. The force of gravity is.

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1 N

9.8 N

0.5 N

Zero

The number 64.350 is rounded off as

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64.4

64.46

63.35

64.36

The frictional effect between the different layers of fluid is called

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Terminal velocity

Stock's law

Viscosity

Surface tension

The Branch of hysics wave mechanics introduced by

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einstein

De broglie

Max Planck

Bohar

One complete round trip of a vibrating body is called.

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Frequency

Time period

Vibration

Amplitude

Work is negative when angle between F and d is

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45^o

₀^o

90^o

180^o

The kilogramis the basic unit of

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Time

Weight

Length

Mass

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