Question # 1

The dimensions of angular velocity are

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[LT-1]

[LT-2]

[T-1]

[L-1T-1]

For a gas obeying Boyle's Law, if the pressure is doubled, the volume becomes.

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Double

Three fold

One half

Remains the same

This is used for

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Co-efficient of friction

Co-efficient of expansion

Co-efficient of viscosity

Co-efficient of contraction

Entropy remains constant.

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Isothermal process

Adiabatic process

Isochoric process

Isobaric process

Multimode graded index fibre has a core whose diameter range lie from.

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5 to 50 micro meter

50 to 100 micro meter

40 to 1000 micro meter

50 to 10,000 micrometer

Angular frequency is the characteristic of

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Linear motion

Vibratory motion

Circular motion

All of these

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 distance between the consecutive nodes is

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the length of simple pendulum of time period 1 second is

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2 m

1 m

0.5

0.25 m

The circumference fo the earth was determined by

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Bohr

A Beruni

Ibn al Haithm

Chadwick

The time rate of change of momentum equals

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Weight

Applied force

Impulse

Mass

Multimode step index fibre is useful for

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Long distances

Short distances

Better quality

Low price

The number of significant figure in 8.80 x 10⁶ kg is

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1

3

6

5

When a body is whirled in a horizontal circle by means of string, the centripetal force is supplied by

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Mass of body

Velocity of a body

Tension in the string

Centripetal acceleration

When speed of a body is doubled then its

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K.E. is doubled

P.E. is doubled

Acceleration of doubled

Momentum is doubled

The study of Physics deals with

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Laws of motion

The structure of space and time

Force present in the nature

All of the above

Sound travel faster in

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CO2

H2

O2

He

The focal length of convex lens

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Negative

Positive

small

Large

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