Question # 1

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the systolic pressure of normal healthy person is.

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120 torr

130 torr

115 torr

110 torr

The experimental value for the velocity of sound in air is

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233 m-sec^-1

333 m-sec^-1

433 m-sec^-1

533 m-sec^-1

The time period of an oscillating mass spring system is 10 second. If mass attached to spring id doubled then time period becomes.

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10 sec

20 sec

5 sec

None of these

The focal length of convex lens

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Negative

Positive

small

Large

The terminal velocity of a droplet falling down under gravity is directly proportional to the square of

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Its density

Its radius

Its viscosity

Its elasticity

The SI unit of power is

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Joule

Newton

Watt

Kilowatt

When the amplitude of a wave is increase to doubled is energy.

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Remain the same

Increases 4 times

Increases by two times

Decreases by half

the distance covered during one vibration of an oscillating body in terms of amplitude 'A' is

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A/2

A

2A

4A

A quantity which indicates the state and direction of a vibrating body is known as

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Time period

Amplitude

Phase

Frequency

The Carnot cycle can be shown by which graph

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P - T graph

P - V Graph

V- T graph

PV -T graph

Motion of projective is

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One dimensional

Two dimensional

Three dimensional

Four dimensional

The speed of sound in air does not depend upon

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Temperature

Pressure

Density

Medium

The slope of velocity time graph shows

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Total distance covered

Average acceleration

Instantaneous acceleration

Torque

Not change in entropy of a system after one complete Carnot cycle is.

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Positive

Negative

Zero

None of these

The space within which gravitational force acts on a body is called

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Electric field

Gravitational field

Magnetic field

Force field

Which one of the following can not be polarized.

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Ultra violet rays

Radio waves

T.V. Waves

Sound waves

The magnification of a convex lens of focal length 5 cm is equal to.

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5

6

10

23

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