Question # 1

Angular frequency is the characteristic of

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Linear motion

Vibratory motion

Circular motion

All of these

A man of 1 kg is freefalling. The force of gravity is

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1 N

9.8 N

0.5 N

Zero

For an ideal gas, the internal energy is directly proportional to.

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Pressure

volume

Mass

Temperature

Which of the following is not directed along the fixed axis of rotation.

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Angular displacement

Angular momentum

Centripetal acceleration

Angular acceleration

The SI unit of force is.

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Dyne

Joule

Volt

Newton

Time period of simple pendulum only depends on

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Mass

Amplitude

Density

Length

A bullet shot straight up, return to its starting point in 10 sec. Its initial speed was

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9.8 ms-1

24.5 ms-1

49 ms-1

98 ms-1

The kilogramis the basic unit of

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Time

Weight

Length

Mass

Which is an example of irreversible process.

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Explosion

Evaporation

Slow compression

A chemical explosion

Increase in the velocity of sound in air for 1 ^oC rise in temperature is.

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61 ms-1

0.61 ms-1

161 ms-1

261 ms-1

The energy processes, we use are

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Efficient

Not efficient

Reversible

None of these

Watt -m2 is the unit of

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Energy

Intensity

Power

Work

If the tension a stretched string is made four times then the velocity of wave.

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Remains same

Is halved

Becomes twice

Becomes 4 times

A vector is denoted by

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Light face

Bold face

Both a and b

None of these

One revolution is equal to.

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90^o

180^o

360^o

270^o

The types of optical fibres are

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Three

Four

Five

Six

The basics quantity among the following is

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Mass

Torque

Force

Velocity

Using a graded Index fibre, the time difference is reduced to about.

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1 ns per km

33 ns per 100 km

33 ns per km

1 ns per 100 km

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