Question # 1

The mass of an object is quantitative measure 0 its

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Momentum

Acceleration

Inertia

Energy

The centre of Newton's rings will be

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Dark

Bright

Coloured

Not visible

In thermodynamics system internal energy decrease by 100 J and 100 J of work done on the system then heat lost will be.

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Zero

100 J

200 J

-200 J

The rate of change of momentum is equal to

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Impulse

Torque

Velocity

Force

A bat finding its correct location by sending

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Matter waves

Ultrasonic waves

Infrasonic waves

electromagnetic waves

Image formed by a concave lens is

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Real

Virtual

Erect

None of these

In rotational motion the analogous of mass is

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Angular acceleration

Torque

Moment of inertia

Angular momentum

The direction of angular velocity is determined.

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Left hands rule

Head to tail rule

Right hand rule

General rule

Maximum number of components of a vector may be

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Infinite

One

two

three

Kilo watt hour is the unit of

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Power

Energy

Force

Torque

Head to tail rule is used for

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Addition of vectors

Subtraction of vectors

Multiplication of vectors

Division of vectors

The state of human blood flow can be found by using.

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Newton's formula of speed of sound

Interference of sound

Phenomena of beats

Doppler's effect of sound

If 'N' is number of lines rule don the grating having length 'L' then grating element 'd' is given by.

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N/L

2N/L

L/N

N/2L

The relation between the speed and hoop can be written as

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2

4

1/2

1/4

The SI unit of angular displacement is.

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Degree

Revolution

Radian

Rotation

The speed of light was measured correctly by

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Galileo

Michelson

Newton

Maxwell

In S.H.M, the acceleration of the body is directly proportional to

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Weight of body

Applied force

Amplitude

Displacement

Air blows from

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High pressure to low pressure

Low pressure to high pressure

Low temperature to high temperature

High temperature to low temperature

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