Question # 1

While deriving the equation for pressure of a gas we consider the

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rotational motion of molecules

vibrational motion of molecules

linear motion of molecules

all of them

During the projectile motion, the horizontal component of velocity

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changes with time

remains constant

becomes zero

decreases with time

If the object is placed at 12 cm distance from a convex lens of focal length 6 cm, then we get an image of ____ as that of object:

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Double the size

Same size

Half the size

None of these

The peak voltage in a 220 volt A.C. supply is nearly

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220 volt

253 volt

.311 volt

440 volt

Mechanical waves on the surface of a liquid are

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Transverse

Longitudinal

Torsional

both transverse and longitudinal

The consumption source if energy is:

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Energy from blomass

Hydroelectric energy

Geothermal energy

None of these

The example of mechanical wave is

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waves in ropes

waves on water surface

waves in air

all of them

An alpha particle has a charge of

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+2e

-2e

-e

+3e

Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as

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waves

beat

interference

resonance

Laws of reflection and refraction can also be explained by:

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Particle nature of light

Quantum nature of light

Wave nature of light

Complex nature of light

A pair of quark and antiquark makes a:

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Meson

Baryon

Proton

Neutron

None of these

The work done in placing a charge of 8 x 10^-18C on a condenser of capacity 100 μ F is

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32 x 10^-32 j

16 x 10^-32j

3.1 x 10^-26j

4 x 10^-10j

A passenger lift accelerates upwards. What change would a passenger inside the lift standing on a weighing machine notice in the weight shown on the machine?

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a decrease in the reading on the scale

no change in the reading on the scale

an increase in the reading on the scale

an increasing in the weight

At terminal velocity the net force acting on it is

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Maximum

Minimum

Zero

None of these

A projectile on its path gets divided into two pieces at its highest point.Which is true?

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Momentum increases

Momentum decreases

Kinetic energy increases

Kinetic energy decreases

The state of rest and state of motion are

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Irrelevant

Relative

Both

None of these

Newton's first law of motion is also known as

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Law of motion

Law of mechanics

law of inertia

None of these

Rain drops are spherical because of

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Gravitational force

Surface tension

Low viscosity of water

Air resistance

Tick which of the following is not state variable:

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Heat energy

Pressure

Entropy

Volume

The quantity of motion of the body is called

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Force

Acceleration

Momentum

None of these

A unit set is the smallest basic structure which is:

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One dimensional

Two dimensional

Three dimensional

Four dimensional

None of these

In diesel engine no sparking device and no need of

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Heavy current unit

Spark plug

Instant starting

None of these

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