Question # 1

The rate of change of angular velocity is called

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Angular velocity

Angular acceleration

Angular displacement

Angular speed

Work has dimension lime

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Torque

Momentum

Velocity

Power

The ability of a body to do work is called its

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Force

Power

Capacity

Energy

Stationary waves are generated on a string of high l, if tension is increased , frequency of vibration will

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Decrease

Unchanged

Half

Increases

The types of optical fibres are

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Three

Four

Five

Six

A typical rocket consumes fuel about

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40000 Kgs-1

30000 Kgs-1

20000 Kg s-1

10000 Kgs-1

The efficiency of diesel engine is about

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25 % to 30%

35% to 40%

40% to 50%

50% to 60%

Moment of inertia is measure din

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Kg m2

Kg m-2

Rad s-1

Joule second

In an object is placed in between focus point and Opticla center of a convex lens, the image formed by lens is.

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Real inverted

Virtual diminshed

Virtual inverted

Virtual erected

The unit of rotational K.E. is

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rAD/SEC

Js

J

Kgm2

Time period of simple pendulum only depends on

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Mass

Amplitude

Density

Length

A ball is thrown up vertically, it takes 3 sec to reach maximum height. Its initial velocity is.

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10 ms-1

12.2 ms-1

15 ms-1

29.4 ms-1

The SI units of solid angle is

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Streadian

Radian

Degree

None of these

If a rocket is accelerating upward with an acceleration of 2 g, an astronaut of weight, mg in the rocket shows apparent weight.

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Zero

Mg

2 mg

3 mg

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

When water falls from tap, its cross sectional area decrease due to.

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Decrease of speed

Increase of speed

Air pressure

Gravity increase

The shortest distance between two points is called

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Distance

Amplitude

Displacement

Is a number

Which is nooptically active

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Sugar

Tartaric acid

Water

Sodium chloride

The final image seen through ey piece in telescope is.

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Real, enlarge and inverted

Vertual, enlarge and erect

Virtual, enlarge and inverted

In Real, enlarge and erect

An ideal heat engine can only be 100% efficient if its cold temperature reservoir is at.

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0 K

0 ^oC

100 K

100 ^oC

the quantities which are define din term of other physical quantieis are called

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Base Quantities

Derived quantities

Bothe a and b

None of these

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