Question # 1

The speed of sound in air does not depend upon

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Temperature

Pressure

Density

Medium

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

International Telecommunication satellite

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4,6,8 and 10 Hz

4,6,11 and 14 GHz

4,6,8 and 12 Hz

4,8,11 and 16 GHz

The resultant of two forces 3N and 4 N acting at right angle to each other is.

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5 N

6 N

1 N

7 N

The unit of work in base unit is

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Kg m-1 sec-2

Kgm sec-2

Kgm2 sec-1

Kgm-1 sec-1

The acceleration produced by elastic restoring force is

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Perpendicular to force

Opposite to force

In same direction as force

Zero

Salter's duck was invented by

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Newton

Einstein

Prof Salter

Maxwell

A stretched string 2 m long and it has 2 hopes of stationary waves hen the wavelength is

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4 m

2 m

3 m

1 m

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 property of bending of light around obstacles is

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Interference

Diffraction

Polarization

Superposition

when a ball is throng straight up, the acceleration at its highest point is.

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Upward

Down ward

Zero

Horizontal

Einstein's theory gives us the physical picture of how the

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Body moves

Gravity works

Moment of inertia produced

Weightlessness creates

In order to produce beats, the two sound waves should have.

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The same amplitude

Slightly different amplitude

The same frequency

slightly different frequencies.

The SI unit of power is

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Joule

Newton

Watt

Kilowatt

Rate of change of velocity is called

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Speed

Acceleration

Displacement

Torque

The acceleration of a projectile along x axis is.

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Zero

Increase

Decrease

Equal to 'g'

On loading the prong of a tuning fork with wax, the frequency of sound.

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Increases

Decreases

Remains same

First increases then decrease

As we go from pole to equator of earth, the value of 'g'

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Increase

Decrease

Remain constant

Zero

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