Question # 1

The rate of change of angular velocity is called

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Angular velocity

Angular acceleration

Angular displacement

Angular speed

The internal energy of system does not depend on

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Temperature

Pressure

Path

Final and initial state

In which medium the speed of sound is greater.

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Oxygen

Air

Water

copper

In the absence of air resistance the acceleration of a body will be

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Uniform

Variable

Instantaneous

None of these

The mechanism of transports energy of all the waves is

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Different

Same

Complicated

Easy

The time period of an oscillating mass spring system is 10 second. If mass attached to spring id doubled then time period becomes.

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10 sec

20 sec

5 sec

None of these

One complete round trip of a vibrating body is called.

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Frequency

Time period

Vibration

Amplitude

If the slope of the velocity time graph remain constant then body is moving with.

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Uniform velocity

Negative variable acceleration

Variable acceleration

Uniform acceleration

A force of 100 N makes on angle of 60^owith y axis, its horizontal component is.

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50 N

60 N

70.7 N

86.6 N

10 N and 20 N are acting on a body of mass 2 kg the minimum acceleration will be.

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10 ms-2

20 ms-2

60 ms-2

5 ms-2

The direction of vector in space is specified by

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1- angle

2- angle

3- angle

4 - angle

Food rich in proteins is:

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potato

grapes

vegetables

bread

An ideal heat engine can only be 100% efficient if its cold temperature reservoir is at.

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0 K

0 ^oC

100 K

100 ^oC

According to Hygen's principle, each point on a wave front acts as a source of.

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Secondary wavelet

New wave front

Sound

Primary wavelet

A fog droplets are in freely falling condition,. the ratio of their radii is 2:3, the ratio of their terminal velocities will be.

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2:3

4:6

4:9

9:4

Blood pressure is measured by

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Hydrometer

Barometer

Sphygmomanometer

Galvanometer

A force applied on a body produces acceleration in

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Opposite direction

perpendicular direction

Its own direction

In any direction

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

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