Question # 1

Polarization of light shows that light is.

Choose an answer

Corpuscular in nature

Of extremely short waves

Longitudinal waves

Transverse waves

The SI unit of spring constant is identical with that of.

Choose an answer

Force

Pressure

Surface tension

Loudness

The phenomenon of Brownian motion shows that

Choose an answer

Molecules exist and can be seen as bright dots moving about

Molecules moves about randomly at highs speeds

Smoke particles behaves as molecules

Smoke particles can be used as models of air molecues.

Which of the following is not necessary for work to be done.

Choose an answer

A constant force

An applied force

A displacement

Force component along the displacement

Out of the following pairs, which one does not have te same dimensions.

Choose an answer

Force and weight

Pressure and stress

Energy and work

Momentum and torque

A single quantum of electromagnetic radiation is termed as.

Choose an answer

Compton

Photon

Hyperon

Meson

Density of blood a

Choose an answer

Equal to water

Greater than water

Less than water

zero

The terminal velocity in case of spherical droplet is directly proportional to.

Choose an answer

Square of the radius of the droplet

Radius of the droplet

Cube of the radius of the droplet

Half of the Radius of the droplet half

A young man wearing glasses does not require bifocals because he

Choose an answer

Is farsighted

Has the ability to accommodate

Is short signed

Does not suffer from coma

The result of the alpha particle scattering experiment gave evidence for which of the following.

Choose an answer

Nuclear fusion

Radio active decay

Existence of isotopes

Nuclear atom

When white light is incident on a diffraction grating, the light that will eb deviated from central image will be.

Choose an answer

White

Yellow

Red

Blue

LASER beam my be measure very large distance because it is.

Choose an answer

Inidirectional

coherent

Monochromatic

Not absorbed

Who discovered a relation between electric and magnetic field.

Choose an answer

Hans Christian Oersted

Michelson Faraday

Lenz

Hertz

Periodic motion is a motion.

Choose an answer

Under the influence of an elastic restoring force

That repeats it self in equal intervals of time

Back and forth over the same path

With constant acceleration

When a conductor situated in a dielectric is charted the energy resides.

Choose an answer

Only on the dielectric

Only on medium surrounding charge

On the dielectric and medium both

Only on the type of the charge

If you float in water with just your nose out the average density of your body must be

Choose an answer

Same as that of water

Greater than that of water

Less than that of water

Zero

The electrons behave as wave because.

Choose an answer

They can be diffracted by a crystal

They can be defecting by magnetic field

They can be deflecting by electric field

they can produce ions in gases

The unit generally used for measuring astronomical distances is.

Choose an answer

Parsecs

Light year

Metre

Kilometer

A bomb dropped from an aeroplane explodes in air, its total.

Choose an answer

Momentum decreases

Momentum increases

K.E. Increases

K.E. Decreases

Which of the following phenomenon is observed in obtaining an X ray photograph of our hand.

Choose an answer

Photoelectric effect

Zeeman effect

Shadow photography

Ionization

Lenses of what diameter are usually not practical.

Choose an answer

Less than 1 m

Larger than 1m

Larger than 5 m

Larger than 10 m

An Electric kettle should always be fitted with an earth connection as a protective device What is being protected by the earth connection.

Choose an answer

The cable connecting the kettle

The fuse in the circuit

The heating element of the kettle

The person using the kettle

The induced current in a circuit can be increased by

Choose an answer

Using a strong magnetic field

Moving the loop faster

Replacing the loop by a coil of many turns

All of the above

Which thermometer is called sprint thermometer

Choose an answer

Alcohol thermometer

Mercury in glass thermometer

Gas thermometer

Radiation thermometer

Original source of biomass is.

Choose an answer

Stars

Moon

earth

Sun

Planets move around the sun due to.

Choose an answer

Centrifugal force

Centripetal force

Gravitational pull between them

Frictional force between them

Prince Louis and vector de Brogtle got Nobel Prize for their work on.

Choose an answer

The dual nature of particles

The wave nature of particles

the corpuscular nature of particles

All of the above

Which of the following in the best container for gas during adiabatic process.

Choose an answer

Copper vessel

Thermos flask

Glass container

Wooden container

The point midway between the lens surface on its participial axis

Choose an answer

Optical centre

Principal focus

Focal plane

Focal length

A bulb of 100 W is connected to a 160 V supply What will be the power consumed.

Choose an answer

25 W

30 W

50 W

64 W

If a ray of light in glass in incident on an air surface at an angle greater than the critical angle, the ray will

Choose an answer

Refract only

Reflect only

Partially refract and partially reflect

Diffract only

More Classes

Other Links

PPSC Physics Full Book MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer