Question # 1

The diastolic pressure of a normal healthy person is.

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120 torr

110 torr

100 torr

75-80 torr

If velocity time graph is parallel to time axis, then acceleration of moving body will be.

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Maximum

Positive

Zero

Negative

The device used for measurement of liquid flow is.

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Manometer

Barometer

Hydrometer

Venturimeter

The rate of change of momentum is equal to

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Impulse

Torque

Velocity

Force

Size of the molecules is much smaller as compared to the

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Mass of the molecules

Distance between the molecules

Density of the molecules

Volume of the molecules

The maximum velocity necessary to put a satellite into orbit is

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7.1 kms-1

7.3 kms-1

7.9 kms-1

8,9 kms-1

If the initial velocity of a projectile becomes doubled, the time of fight will be.

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Same

4 times

Double

3 times

The ratio of the velocities of wate in a pipe lying horizontally at two ends is 1 : 4 The ratio of diameters of pipe at these two ends is.

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1 : 2

2 : 1

1 : 4

4 : 1

If a convex lens is used as a magnifying glass, whcih lens will give higher magnification that has.

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Short size

Long focal length

Large size

Short focal length

the height of the geostationary satellite above the equator is.

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35000 km

36000 km

34000 km

33000 km

The produce oscillation, body is pulled away from its

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Mean position

Extreme position

Both a and b

None of these

Temperature of a gas is increased from 27 oC to 127 oC. The ratio of its mean K.E. will be

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3/4

9/16

4/3

10/9

The difference between two molar capacities is equal to.

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Plank's constant

General gas constant

Molar gas constant

Boltzmann constant

Increase in speed of sound for 1 ^oC rise in temperature is.

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0.61 ms-1

0.61 cms-1

61 ms-1

6.1 ms-1

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

Work is a

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Scalar quantity

Vector quantity

Basic quantity

None of these

The error in a certain measurement occurs due to

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Negligence of a person

In appropriate technique

Faulty Appraatus

All of rhe above

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

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