Question # 1

The optical fibre is covered for protection by

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Glass jacket

Plastic jacket

Steel jacket

Diamond jacket

A ray of light shows the direction of propagation of light It is line which is.

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Normal to the wave front

Parallax to the wave front

Opposite to the wave front

Equal to the wave front

The work done is isochoric process is.

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Constant

Variable

Zero

Depend upon condition

Light waves emitted from a source spread in

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Specific direction

All direction

Upward direction

None of these

One radian is equal to.

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75.3^o

57.3^o

35.7^o

73.3^o

Two tunign forks of frequencies 260 Hz and 256 Hz are sounded together , the number of beats per second is.

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2

258

516

4

Sound waves are

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Electromagnetic waves

Transverse waves

Compressional waves

Matter waves

the acceleration of a body having SHM, depends upon its.

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Time period

Amplitude

Frequency

Displacement from mean position

The moment of inertia is analogue to

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Mass

Weight

Torque

Force

The subtraction of a vector is equivalent to the addition with

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Same direction

Perpendicular direction

Reversed direction

All of these

The speed of sound is greater in solids due to their high.

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Density

Pressure

Temperature

Elasticity

Average acceleration is a

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Scalar quantity

Vector quantity

(-) ve quantity

None of these

A body starting from rest attains angular acceleration of 5 rad s-2 in 2 second final angular velocity will be.

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10 rad s-1

7 rad s-1

3 rad s-1

2 rad s-1

The resultant of two vectors having magnitude 10 N and 8 N Can not be

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2 N

9 N

18 N

20 N

In matter, the Atoms are in a state of never ending

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Motion

Rest

Change

State of decline

The frequency of 2nd pendulum is

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0.5 Hz

1 Hz

1.5 Hz

2 Hz

Biomas is a potential source of

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Renewable energy

Non renewable energy

Botha a and b

Tidal energy

The phenomenon of polarization of light reveals that sun light is

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Longitudinal waves

Transverse wave

Electromagnetic waves

Monochromatic wave

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