Question # 1

Parallel vectors of same magnitude will be

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Equal

Opposite

Both a and b

None of these

The magnifying power of a convex lens of focal lendth 10 cm is

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7

9.6

11

3.5

--------- is area of physics

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Chemical physics

astrophysics

Mechanics

None of these

The profile of periodic waves generated by a source executing S.H.M is represented by a.

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Circle

Sine curve

Tangent curve

Cosine curve

The weight of the body at the centre of earth is

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Maximum

Minimum

Zero

Infinite

A vector is denoted by

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Light face

Bold face

Both a and b

None of these

Which one is a conservative force

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Elastic spring force

Air resistance

Frictional force

Tension in the spring

The angle between circumference of a circle and center is

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Which one of the following is into directed along the axis of rotation

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Angular acceleration

Angular momentum

Centripetal acceleration

Angular displacement

When speed of a body is doubled then its

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K.E. is doubled

P.E. is doubled

Acceleration of doubled

Momentum is doubled

A device based upon the thermodynamics property of matter is called.

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Calorimeter

Heat engine

thermometer

Voltmeter

One mile is equal to

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1.625 km

1.609 km

1.325 km

1.850 km

The entropy of the universe with passage of time is.

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Increases

Decreases

Remain constant

Increases and decreases

For an ideal gas, the internal energy is directly proportional to.

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Pressure

volume

Mass

Temperature

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 law of conservation of mass gives.

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Beronoulli's

Venturi relation

Torricelli's theorem

Equation of continuity

Computer Chips are made of

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carbon

Gemanium

Silicon

Sodium

Unite of thermodynamics scale of temperature is.

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Centigrade

Fahrenheit

Kelvin

Celsius

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