Question # 1

The location of near point changes with

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Age

Size of the eye

Sharpness of the eye

None of these

The centripetal force is always directed

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Away from the centre along the radius

Along the direction of motion

Opposite to the motion of the body

Towards the centre along the radius

A 2 meter of high tank is full of water. If a hole appears at its middle, then the speed of efflux is.

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4.4 ms-1

10 ms-1

6.2 ms-1

20 ms-1

The instrument which detects the instant as which the external pressure becomes equal to the systolic pressure is called.

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Manometer

Sphygmomanometer

Barometer

Stethoscope

If heat engine absorb 400 J and rejects 200 J heat energy, its efficiency will be.

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25%

50%

70%

100%

In vibrating string, the points where the amplitude is maximum are called.

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Nodes

Antinodes

Troughs

Crests

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

If the are of a circle equals its radius, then the angle subtended at the center will be

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1 degree

One rotation

One radian

Half rotation

The horizontal component of velocity of projectile

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Increases

Decreases

Remain same

Decreases and then increases

The mechanism of transports energy of all the waves is

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Different

Same

Complicated

Easy

Which one is a conservative force

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Elastic spring force

Air resistance

Frictional force

Tension in the spring

The law of conservation of energy is the basis of.

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Stream line flow

Equation of continuity

Bernoulli's equation

Venture relation

The device used to study the spectra from different sources of light is

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Telescope

Optical fibre

Spectrometer

Microscope

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

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Motion

Rest

Change

State of decline

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

Half wavelength corresponds to

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0 ^o

90 ^o

180 ^o

360 ^o

When a body is moving along a circular path, then such a motion is called

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Vibratory motion

Rotatory motion

Linear motion

None of these

Direction of angular acceleration is always along

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x-axis

y -axis

z-axis

The axis of rotation

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