Question # 1

Nuclear force exists between

Choose an answer

Proton proton

Neutron -neutron

neutron -proton

All of these

A Galilean telescope with objective of coal length 30 cm and eyepiece of focal length.8 cm when focused for infinity has length equal to

Choose an answer

7.5 cm

2.2 cm

38 cm

240 cm

The ablate of rays of different colours to converge a single point sifter refraction though a convex lens is called.

Choose an answer

Come

Distortion

Spherical aberration

Chromatic aberration

Which of the following configuration of BJTs gives both voltage gain and current gain.

Choose an answer

common Base

Common Emtter

Common collector

All of the above

Photo diodes are used as

Choose an answer

Optical fibre receivers

Automatic switching

Logic circuits

All of the above

Which law states that if two systems are in thermal equilibrium with a third system they are also in the thermal equilibrium with each other.

Choose an answer

Third law of thermodynamics

Second law of thermodynamics

First law of thermodynamics

Zeroth law of thermodynamics

Which of the following devoices are used for measuring temperature.

Choose an answer

Thermocouples

Thermistors

Thermometers

All of these

The ratio of the velocity of sound in hydrogen to the velocity of sound in oxygen is

Choose an answer

4:1

16:1

2:1

8:1

Magnetic effect of current was discovered by

Choose an answer

Faraday

Fleming

Oersted

Ampere

What is the relativistic version of the Schrodinger equation.

Choose an answer

Klein Gordon equation

Laplace equation

Quadratic equation

Binomial equation.

A water wave is an example of

Choose an answer

Electromagnetic wave

Longitudinal wave

Transverse wave

Reverberation

When a body acceleatres.

Choose an answer

Its direction always chances

It mass always changes

It velocity always changes

It falls towards the earth

In a galvanometer the enameled copper wire is wound on.

Choose an answer

An insulator

A non magnetic material

A magnetic material

A conductor

Convention is the transfer of thermal energy by means of currents in

Choose an answer

Pressure

Temperature

Liquids

Fluids

One radian is equl to

Choose an answer

57.3 ^o

67.3 ^o

60 ^o

87.3 ^o

The nuclear model of the atom was derived partly from experiments involving the scattering of alpha particles performed by.

Choose an answer

Chadwick

Rutherford

Anderson

Einstein

The relation between work function and maximum energy of photo electrons was discovered by.

Choose an answer

Stefan

Marely

Einstein

Max. Planck

Which of the following particles leave no trail in a cloud chamber.

Choose an answer

Electrons

Protons

Alpha particles

Neutrons

If an elevator is moving vertically up with an acceleration 'a' the force exerted on the floor by a passing of mass 'm' is

Choose an answer

Ma

Mg

M(g +a)

M (g-a)

The fundamental frequency of a sound source is 256 Hz. What is the frequency of the first harmonic.

Choose an answer

64

128

256

512

The rms value of emf in a circuit is given by a factor of.

Choose an answer

0.637

0.7

0.707

1.11

The working principal of a photograph enlarger is basically the same as that of a.

Choose an answer

Camera

Side projection

Microsopce

Telecopse

If a gas does 10 J of external work white expanding then the change in internal energy is equal to.

Choose an answer

0 J

10 J

-10 J

100 J

With which factor disputative power of a grating increases.

Choose an answer

Order of spectrum

Number of lines per centimeter

Order and number of lines per centimeter

Shape of the grating

Which current can pass through a capacitor continuously.

Choose an answer

Alternating current

Direct current

Eddy current

Pulsating current

What is the properly of materials that responds at an atomic or subatomic level to an applied magnetic field.

Choose an answer

Magnetism

electroplating

Diamagnetism

Electrolysis

Polaroid's were invented in

Choose an answer

1787

1887

1897

1929

When transvers wave travelling in a less dense medium is reflected at an interface will a more dense medium.

Choose an answer

A trough becomes a crest

There is no phase shift

There is phase shift of 360 ^o

A crest remains a crest

A diatomic gas contains only

Choose an answer

Translational K.E.

Rotational K.E.

Vibrational K.E.

All of these

The advantage of electron tube over a transistor is.

Choose an answer

Low consumption of power

Low input impedance

Its high efficiency

Its high gain

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