Question # 1

What is the degree of magnetization of a material.

Choose an answer

Susceptibility

Ablitity

Retentivity

Capacity

The resistance of a wire does not depend upon.

Choose an answer

Area of cross section of the wire

Length of the wire

Temperature of the wire

Current passing though the wire

The angle of scattering for which the Compton shift is maximum is.

Choose an answer

0^o

45 ^o

80 o

180^o

LED is a p-n junction that emits

Choose an answer

Visible light

X- rays

Ultraviolet light

electromagnetic waves

Beats occurs because of.

Choose an answer

Reflection

Refraction

Interference

Doppler's effect

The law of gravitation was introduced by

Choose an answer

Huygen

Boyle

Newton

Pascal

Which of the following quantity in analogous to temperature in electricity.

Choose an answer

Charge

Resistance

Inductances

Potential

Which parameter determines the brightness of a light source sensed by an eye.

Choose an answer

Light energy entering the eye

Wavelength of light

Total radiant flux entering the eye

Total luminous flux entering the eye

The condition of complete equilibrium is satisfied if.

Choose an answer

Vector sum of all the torques is zero

Vector sum of all the forces is zero

Vector sum of all the forces and torques is zero

Angular acceleration is zero

The dimensions of universal gravitational constant G are.

Choose an answer

[MLT-2]

[ML -2T-2]

[M-1L2T-2]

[ML-1T-1]

In the experiment of photo electric effect the minimum frequency of photons at which electrons are emitted from a metal surface is called.

Choose an answer

Critical frequency

Typical frequency

Threshold frequency

Surface frequency

A heart coil is out into two equal parts and only one part is now used in the heater The heat generated will be.

Choose an answer

Halved

One fourth

Doubled

4 times

The current passing through the switch s will be

Choose an answer

Zero

3 A

4.5 A

10 A

A water wave is an example of

Choose an answer

Electromagnetic wave

Longitudinal wave

Transverse wave

Reverberation

Which particle are not emitted by a radioactive substance.

Choose an answer

Alpha particles

Beta particles

Gama 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)

If in Young's double slit experiments the separation between two slits is halved then the fringe width

Choose an answer

Remains unchanged

Becomes double

Reduces to half

Becomes 3 times

The ionization energy for hydrogen atom is

Choose an answer

-11.6 eV

-12.6 eV

-13.6 eV

-19.6 eV

A shell explodes and many pieces fly off in different directions, which of the following is conserved.

Choose an answer

Momentum

K.E.

Momentum and K.E

Neither momentum nor K.E.

If two non zero vectors are perpendicular to each other then their scalar product is equal to.

Choose an answer

-1

1

0

Infinity

The magnitude of resultant of three forces is 3. Its x -component is 2 and y component is 1, then its z-component will be.

Choose an answer

1

2

3

4

A resistor connected to a battery is heated due to current passing through it. Which of the following quantity does not change.

Choose an answer

Resistivity

Resistance

Number of free electrons

Drift velocity

Choose the one which acts as single inverter.

Choose an answer

Common emitter

common collector

Common base

Diode

The measure of how strongly a material oppose the flow of electrical current is known as

Choose an answer

Electrical resistivity

Specific electrical resistivity

Volume resistivity

All of the above

A radiation spectrum which is continuously distributed over a frequency region without being broken up into lines or bands is known as.

Choose an answer

Continuous spectrum

Band spectrum

discrete spectra

Absorption spectrum

Michelson used the equation to determine the speed of light.

Choose an answer

c = 4 fd

c = 8fd

c =12 fd

c = 18 fd

Monochromatic ight is of single.

Choose an answer

Frequency

Wave length

Amplitude

Pitch

If the pressure in a closed vessel is reduced by drawing some gas the mean free path of the gas molecules.

Choose an answer

Decreases

Remains constant

Increases

First increases then decreases

When ever current is drawn from a cell Its terminal potential difference and emf become

Choose an answer

Different

Same

Zero

Negative

Which property of waves is independent of the others.

Choose an answer

Amplitude

Velocity

Frequency

Wavelength

For polarization , the direction of oscillation has to be perpendicular to the direction of travel sound waves are longitudinal waves so they cannot be.

Choose an answer

Reflected

Deflected

Diffracted

polarized

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