Question # 1

Palaroids can be used

Choose an answer

To control headlight glare in right driving

To determine the concentration of the optically active substances

In curtain less windows to adjust the amount of light

all of the above

The door of an operating refrigerator in a closed room is opened after sometime the temperature of the room will be

Choose an answer

Lowered

Raised

Unaffected

Become zero

Such substance which undergo plastic deformation until they break are known as.

Choose an answer

Diatomic substances

Monoatomic substances

Ductile substances

Brittle substances

During the projectile motion, the horizontal component of velocity.

Choose an answer

Changes with time

Becomes zero

Does not change but remains constant

Increases with time

A ball is thrown straight up when the ball reaches the highest point.

Choose an answer

Both is velocity and acceleration are zero

In velocity os zero but acceleration is not zero.

It acceleration is zero but velocity is not zero.

Neither velocity nor acceleration is zero.

Which particle has zero charge and zero rest mass.

Choose an answer

Neutron

Proton

Electron

Photon

If a planet of mass double than that of the earth and radius three times greater than the earth a 10 kg mass on its surface will weight.

Choose an answer

2.2 N

4.4 N

6.7 N

13.2 N

If emf of the battery in a thermocouple is doubled, what is the rate of heat generation at one function.

Choose an answer

Remains unchanged

Becomes half

Become double

Becomes 4 times

Which particle is removed by a photon.

Choose an answer

Quark

Electron

Proton

Neutron

The distribution of electrical charge i an object caused by teh influence of nearby charges is called.

Choose an answer

Electric potential

Electrostatic induction

Electric flux

Electric dipole moment

Transformer make possible the

Choose an answer

transmission of A.C. power

conversion of AC and D.C

Cyclotron

Particle accelerator

What information is given by the tangent to a field that point of electric field.

Choose an answer

Magnitude

Direction

Proper unit

Dimensions

The dot product of electric intensity and area of a surface is equal to.

Choose an answer

Magnetic flux

Electric flux

Motional emf

Induced emf

The Pressure will be low where the speed of the fluid is

Choose an answer

Zero

High

Low

Constant

Diffraction is a special type of.

Choose an answer

Polarization

Interference

Dispersion

Scattering

Which of the following is a thermodynamic potential

Choose an answer

Internal energy

Enthalpy

Gibb's free energy

All of these

The pressure necessary to liquify a gas at the critical temperature is called.

Choose an answer

Normal pressure

Atmospheric pressure

Critical pressure

Liquid pressure

A wave which consists of a single, non repetitive disturbance is called a

Choose an answer

Continous wave

Pulse

Longitudinal wave

Transverse wave

Such an inductor coil which does not consume energy and is often employed for controlling A.C. without consumption of energy is called.

Choose an answer

Reactance

Choke

Impendence

Diode

The image of distant object as seen through as astronomical telescope is.

Choose an answer

Real and inverted

Virtual and inverted

Real and erect

Virtual and erect

Who suggested that energy is radiated or absorbed in discrete packers called quanta.

Choose an answer

Max. Planck

Stefan

Lummer

Boltzmann

The wavelength is the distance along the line of wave propagation between two successive particles which have equal

Choose an answer

Velocities

Phases

Amplitude

Displacements

Two forces each of 10 N magnitude act on a body It the forces are inclined at 30 ^o and 60 ^o with x-axis, then the x-component of their resultant is.

Choose an answer

10 N

1.366 N

13.66 N

1.35 .6 N

Which of the following is used for reducing spherical aberrations in optical instruments.

Choose an answer

Plano convex lens

Concave lens

Spherical mirrors

Piane mirrors

Which term is used for human eye deflect near sightedness.

Choose an answer

Myopia

Hypermetropia

Presbyopia

Calaract

Ultrasonic sound waves

Choose an answer

Can be heard by a normal human ear

Can be heard with the help of hearing apparatus

Can be heard with the help of microphone

cannot be heard

What is the total entropy change during an reversible cycle.

Choose an answer

Unity

Infinite

Zero

Cannot be detected

A metallic rod is continuously heated at its two ends, The heat following through the rod does not depend upon.

Choose an answer

Mass of the upon

Area of cross section of the rod

Temperature gradient between two ends

Time for which heat flow through the rod

The phenomenon of radioactivity is associated with

Choose an answer

Decay of nucleus

Decay of atoms

Fusion of nuclei

Emission of electrons

Which Muslim Scientist is regarded as father of optics.

Choose an answer

Ibn al Haithem

Al khawarizmi

Nasir al Din Al tusi

Ibn Musa al khawarzmi

Which quantity has different units from the other three.

Choose an answer

Density x volume x velocity

Rate of change of momentum

Young's modulus x area

Weight

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