Question # 1

the length of simple pendulum of time period 1 second is

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2 m

1 m

0.5

0.25 m

A force applied on a body produces acceleration in

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Opposite direction

perpendicular direction

Its own direction

In any direction

The types of optical fibres are

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Three

Four

Five

Six

One mile is equal to

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1.625 km

1.609 km

1.325 km

1.850 km

Which one of the followign scientistis made some conributions to geometrical optics

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Plato

Archimedes

Euclid

None of these

When a particle is moving along a circular path its projection along the diameter executes

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Linear motion

Vibratory motion

Rotatory motion

SHM

Pressure of fluid will be low where speed of fluid is.

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Low

Zero

High

Constant

A cycle of petrol engine undergoes

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Two process

Three process

Four process

single process

A double convex lens acts as diverging lens when the object is

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At infinity

Inside the focus

A way from focus

A a large distance from lens

For a rocket , the change in momentum per second of the ejecting gases is equal.

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Acceleration of the rocket

Momentum of rocket

Velocity of rocket

Thrust acting on rocket

The moment of inertia is analogue to

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Mass

Weight

Torque

Force

The diver spin faster when moment of inertia becomes.

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smaller

Greater

Constant

Equal

Which one of the scientist made some contribution to geometrical optics?

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Phythagoras

Archimedes

Euclid

Plato

The resultant of two forces 30 N and 40 N acting parallel to each other is.

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30 N

40 N

70 N

10 N

the velocity of sound at 0 ^oC is 332 ms-1, the velocity of sound at 10 ^oC will be

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337.1 ms-1

338.1 ,ms-1

342.1 ms-1

328.1 ms-1

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

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5

6

10

23

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 is nooptically active

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Sugar

Tartaric acid

Water

Sodium chloride

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