Question # 1

The SI unit of angular momentum is

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J.S-2

J.S-1

J.S

J.m

the velocity of sound is maximum at 20 ^oC in

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Lead

Copper

Glass

Iron

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

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7 N

5 N

4 N

1 N

Usually the x-axis is taken as

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Vertical axis

Horizontal axis

+ve axis

-ve axis

The angle between circumference of a circle and center is

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Pi radian is equal to.

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0^o

90^o

180^o

57.3^o

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The distance between two consecutive wave front is equal to

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One wave length

Two wave length

Half wave length

Three wave length

Teh speed of sound in air is 340 m/s. If the pressure of air is doubled then the speed becomes.

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Double

Half

Four times

Remains same

The unit o pressure of gas is

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Nm^-2

Pascal

Atmosphere

All of these

3 Joules of work id done is 3 seconds, then power

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6 Watt

1 Watt

3 Watt

2 Watt

Opted unit to measure blood pressure is.

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N/m2

Pascal

mm of Hg

N.m2

Which quantity of the following is dimensionless.

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Angular velocity

Centripetal force

Angular acceleration

Angular displacement

Multimode step index fibre is useful for

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Long distances

Short distances

Better quality

Low price

By increasing the amount of stretch in spring the force exerted will

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Increase

One watt

One erg

One joule

If a body is moving in the counter clockwise direction the direction of angular velocity will be

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Toward the centre

Away from the centre

along the linear velocity

Perpendicular to both radius and linear velocity

When a vector is multiplied by a (-)ve number its direction

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Remains constant

Reversed

Change by 90°

None of these

2 radian = ____

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2 m

4 m

57.3 m

114.6 m

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