Question # 1

The temperature of gas is produced by

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At potential energy of its molecules

The kinetic energy of its molecules

The attractive force between its molecules

The repulsive force between its molecules

The magnitude of the force producing an acceleration of 10 m/sec²in a body of mass 500 grams is:

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3 N

4 N

5 N

6 N

Which one of the following can act approximately as a source of monochromatic light;

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Neon lamp

Fluorescent tube

Sodium lamp

None of these

Every crystalline solid has

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definite melting point

different melting points

may or may not be definite

none of them

Aerodynamics is a branch of:

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Hydrodynamics

Thermodynamics

Both of them

Statics

Blood pressure is measured by the instrument

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stethoscope

sphygmomanometer

barometer

none of them

In case of constructive interference of two waves, the amplitude of the resultant wave is _______ either of the waves:

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Greater than

Equal to

Smaller than

None of these

Split rings act as

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Vibrator

Resistor

Motor

Commulator

A rotating wheel accelerates up to the value of 0.75 rev/sec²after 2 seconds of its start. Its angular velocity becomes:

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9.42 rad/sec

2.6 rev/sec

1.5 rev/sec

Both A and C

Which of the following options states the names of fluids in the order of increasing viscosity?

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mercury, motor oil, methanol

methanol, mercury, motor oil

motor oil, mercury, methanol

methanol, motor oil, mercury

A convex lens acts as diverging lens when the object is placed:

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Between F and 2F

At 2F

With focal length

Beyond 2F

The doped semi-conductors materials are known as

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intrinsic semi-conductor

extrinsic semi-conductor

either of them

none of them

The eye piece of a compound microscope acts as a

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Diverging lens

Converging lens

Diverging mirror

Converging mirror

The range of projectile is 50 m when θ is inclined with horizontal at 15° what is the range when θ becomes 45°?

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400 m

300 m

200 m

100 m

The idea of Michelsion's interferometer is based on the

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reflection of light

interference of light

refraction of light

all of them

For obtaining equal and same height mirror should be

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Convex

Concave

Plane

None

A jet engine works on the principle of

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Conservation of linear momentum

Conservation of mass

Conservation of energy

Conservation of angular momentum

Viscus force depends upon

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Coefficient of viscosity

Velocity of objects

Radius of object

All of these

Length of a metal cylinder with the help of a vernier callipers of least count 0.01 cm is 5.35 cm. Its percentage uncertainty in length is

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2%

2.3%

0.2%

0.3 %

The direction of a vector in a space is specified by

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One angle

Two angles

Three angles

Cannot be specified

Newton's rings are formed due to

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Refraction of light

Diffraction of light

Interference of light

None of these

Earth is considered to be

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a non-inertial frame

an inertial frame

an accelerated frame

none of the above

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