Question # 1

A body moving with an acceleration of 5 m/sec²started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

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150 m

250 m

350 m

400 m

The word amorphous means:

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Without any structure

With definite structure

Regular arrangement of molecules

Both (B) and (C)

None of these

The vibrations of factory floor caused by the running of heavy machinery is an example of

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free vibration

natural vibrations

forced vibrations

all of them

When a body moves with a constant speed in a circle:

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No work is done on it

No acceleration is produced in the body

Velocity remains constant

None of these

The chemical properties of an element depends upon the number of

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electron

position

photons

neutrons

The discuss used by athlete has a mass of 1 kg, its weight in newton is

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9.8 N

80 N

98 N

100 N

The concept of direction and position are purely

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absolute

relative

absolute or relative

none of these

Polymeric solids have

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low specific gravity

high specific gravity

either of them

none of them

The substances whose resistance decreases with the increase in temperature these substances have coefficient of

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positive temperature

negative temperature

absolute temperature

zero temperature

Which one of the following is dimensionless.

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Acceleration

Velocity

Density

Angle

Acceleration of a body at any particular instant during its motion is known as

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average acceleration

uniform acceleration

instantaneous acceleration

all of them

A ball is dropped from a certain height and another ball is projected horizontally from the same point.Which of the following statements is correct?

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Both hit the ground at the same velocity

Both hit the ground at the same speed

The change of velocity during the path for both balls is the same

The change of speed during the path for both balls is the same.

For glass-air boundary, the value of the critical angle is

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42°

45°

30°

60°

What is the time taken by light to travel 4 mm in a material of refractive index 3

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4 x 10^-11 s

2 x 10^-11 s

16 x 10^-11 s

8 x 10^-11 s

The effect of decrease in pressure with the increase in speed of the fluid in horizontal pipe is drive from

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Bernoulli's theorem

Venturi effect

Torricelli's theorem

Diastolic effect

The principle of rocket motion is based on the

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First law of motion

Second law of motion

Third law of motion

None of these

A car is moving high velocity when it takes a turn.A force acts on it outwardly because of

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Centripetal force

Centrifugal force

Gravitational force

All of these

The light from the sun reaches to earth with wavefronts

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Spherical

Cylindrical

Plane

None of these

a constant force F is applied to keep the particle moving with uniform velocity V.Then the power required is

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1/2 FV²

FV²

FV

F/V

The magnitude of displacement is

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Distance between two points

Distance in a curved path

Shortest distance between two points

None of these

A fixed mass of a gas is at a pressure P. if its volume and absolute temperature are both doubled, the new pressure is

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P/4

P/2

P

2P

Which of the following is not an advantages of using optical fibres over copper cables?

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signal attenuation

number of signals carried per wire

cost of installation

none of the above

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