Question # 1

A body starting from rest attains angular acceleration of 5 rad s-2 in 2 second final angular velocity will be.

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10 rad s-1

7 rad s-1

3 rad s-1

2 rad s-1

A ray of light is a line

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Parallel to wave front

Normal to wave front

Anti-parallel to wave

Any one of these

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

When two identical travelling waves are superimposed, velocity of resultant wave.

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Decreases

Increases

Remain same

Becomes zero

Pascal is the unit of

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Pressure

Force

Tension

Weight

The wave form of SHM is.

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Sine wave

Cosine wave

Tangent wave

Square wave

The subtraction of a vector is equivalent to the addition with

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Same direction

Perpendicular direction

Reversed direction

All of these

The diver spins faster when moment of inertia becomes.

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smaller

Greater

Constant

Zero

The horizontal component of velocity of projectile

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Increases

Decreases

Remain same

Decreases and then increases

Bright fringes are also called as

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Minima

Maxima

Wave front

Ray of light

The molecules of an ideal gas exert

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Force on each other

No force on each other

Large force on each other

Pressure on each other

10 N and 20 N are acting on a body of mass 2 kg the minimum acceleration will be.

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10 ms-2

20 ms-2

60 ms-2

5 ms-2

the shortest distance between two points is called.

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Speed

Acceleration

Distance

Displacement

One complete round trip of a body is called

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Displacement

Time period

Vibration

Frequency

When ever the path difference between the waves is integral multiple of half the wavelength, interference will be

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Constructive

Destructive

(-)ve

(+) ve

If a body revolves under centripetal force its angular acceleration is

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Non zero

Variable

Increasing

Zero

A mass of 1 kg is freely falling. The force of gravity is.

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1 N

9.8 N

0.5 N

Zero

If an object is placed with in the focal length of a convex lens, its image is formed.

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Real

Inverted

Virtual

Smaller than object

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