Question # 1

A unijunction transistor

Choose an answer

Has only one junction

Is a two terminal device

Is fabricated from germanium

Is fabricated fromuranium

Which of the following quantities is not changed during refraction of light.

Choose an answer

Its direction

Its speed

Its frequency

Its wavelength

Monochromatic light passing through a thick prism is.

Choose an answer

Polarize

Disperesed

Diffracted

Deviated

In case of a convex lens, when object is placed at F

Choose an answer

the image is formed beyond 2 F

the image is formed between F and 2 F

No image is formed

the image is formed behind the object

Any frequency higher than the fundamental frequency of a sound is known as.

Choose an answer

Overtone

Beat

Acoustics

Shockwaves

Stationary waves only a discrete set of frequencies are set up in a medium. This fact is called.

Choose an answer

Harmonics

Overtones

Quantization of frequencies

Superposition of frequencies

A application of the phenomenon of polarization is in

Choose an answer

The scattering of light beams

Explaining the blue colour of sky

Identifying chemicals elements

Analysis of mechanical stress

Binding energy per nucleon is.

Choose an answer

Greatest for heavy nuclei

Least for heavy nuclei

Greatest for light nuclei

Greatest for medium weight nuclei

Which of the following is formed by decay of a free neurton.

Choose an answer

A number of electrons

Two protons

A proton and an electron

An alpha particle

The diameter of a lens is called.

Choose an answer

Focal length

Principal axis

Optical centre

Aperture

What should be the shape of an ideal thermometer.

Choose an answer

Sphereical

Cubical

Cylindrical

Rectangular

When a helium atom loses an electron it becomes.

Choose an answer

An a particle

A proton

A positive helium ion

A negative helium ion

What for is a modulator circuit used.

Choose an answer

To eliminate carrier waves

To superpose the radio frequency signal on the carrier waves

To transmit the signal

To create sound waves

Electrostatic force as compared to gravitational force is

Choose an answer

Zero

infinite

Very weak

Very strong

In Isochoric process there is no

Choose an answer

Work done

Internal energy change

Volume change or work done

Heat exchanged

The nib of fountain pan is split of convey ink down the nib by the phenomenon of.

Choose an answer

Adhesion

Cohesion

Osmosis

Capillary

The SI unit of torque is

Choose an answer

kg ms-2

kg m2s-2

kg ms-1

kg m2 s-3

A device consisting two different conductors that produce a voltage proportional to the temperature difference between either end of the pair of conductors is a.

Choose an answer

Thermistor

Thermocouple

Strain gauge

Potentiometer

On which parameter the path difference between two interfering waves depends upon.

Choose an answer

Amplitude

Pitch

Intensity

Phase angle

Image formed by a concave lens is.

Choose an answer

Real

Magnified

Virtual

Real and magnified

The phenomenon in which a photon of frequency 'f' is scattered by an electron and the scattered photon has frequency f <f is known as.

Choose an answer

Pair production

Pair annihilations

Photoelectric effect

Compton's effect

Which particle has zero charge and zero rest mass.

Choose an answer

Neutron

Proton

Electron

Photon

A device used to determine mass of an isotope quite accurately is known as.

Choose an answer

Spectrometer

Mass spectrometer

Mass detector

Electronic balance

Telecommunication by Optical fibers is done by

Choose an answer

Single mode step index fibre

Multimode step index fibre

Multimode graded index fibre

All of the above

Who was the first to suggest the existence of a positively charged nucleus in an atom.

Choose an answer

J.J Thomson

R.A Millikan

E.Rutherford

Neil Bohr

The decay to form other nuclides by emitting particles and electromagnetic radiations by unstable nuclides is called.

Choose an answer

Nuclear stability

Radioactivity

Carbon dating

Spontaneously

When a liquid is hated retaining its liquid sate then its molecules gain.

Choose an answer

K.E.

P.E

Heat energy

Chemical energy

The resistance offered by one cubic meter of a substance is known as.

Choose an answer

Reactance

Conductance

Conductivity

Resistivity

Newton's rings are experimentally derived from the phenomenon of.

Choose an answer

Polarization of light

Resolution of light

Interference of light

Diffraction of light

Which animal did Erwin Schrodinger contemplate using in his famous thought experiment.

Choose an answer

mouse

Cat

Dog

Rabbit

If an object moves with velocity of light the apparent length of the object moving the direction of motion becomes.

Choose an answer

Larger

Smaller

Zero

Infinity

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