Question # 1

Force acting on a test charge between the plates of a parallel plate capacitor is F. If one of the plates is removed teh force on the same test charge will be.

Choose an answer

Zero

F/2

F

2 F

For which material magnetic susceptibility is negative.

Choose an answer

Paramagnetic

Diamagnetic

Ferromagnetic

All of these

If Young's experiment is performed in water. which of the following change will occur.

Choose an answer

Fringe width will increases

Fringe width will decreases

Fringe width will remain unchanged

No fringe will be seen

When the temperature of source and sink of a heat engine become equal the entropy change will be.

Choose an answer

Zero

Maximum

Minimum

Negative

When did an international committee agree on a set of definition of units.

Choose an answer

1912

1956

1960

1986

A pencil dipped partially into water appears bent because of.

Choose an answer

Reflection of water surface

Diffraction of water surface

Refraction of water surface

Water is a fluid

What is the emission of light by a substance that has observed light or others electromagnetic radiations of a difference wavelength.

Choose an answer

Fluorescence

Illuminance

Luminance

Incandescence

Which of the following is standard scale of temperature

Choose an answer

Mercury scale

Platinum resistance scale

Gas scale

Alcohol scale

A polaroid is

Choose an answer

A red light filter

A device used for a analyzing polarized light

A device used in polarimeter

An adjustable shutter

Who discovered a relation between electric and magnetic field.

Choose an answer

Hans Christian Oersted

Michelson Faraday

Lenz

Hertz

When current in an inductor is increasing

Choose an answer

energy is lost

Energy is being stored in the magnetic field of the inductor

Energy is being drained from the magnetic field of the inductor

Eddy current is produced

White light a tungsten filament lamp is passed through sodium vapor and viewed through a diffraction gritting Which of the following best describes the spectrum which would be seen.

Choose an answer

Coloured lines on a black background

Coloured lines on a white background

Dark lines on a coloured background

Dark lines on a white background

The half life of a radioactive substance as compared to its mean lif eis.

Choose an answer

30%

50%

70%

90%

Which of the following factor will not affect the speed of sound i a medium.

Choose an answer

Temperature

Pressure

Humidity

Mass

Susceptance of a circuit is the reciprocal of.

Choose an answer

Admittance

Resistance

Reactance

Impedance

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

Choose an answer

-1

1

0

Infinity

On which parameter the time required to charge a capacitor depends upon.

Choose an answer

magnitude of charge

Applied potential difference

Capacitances

Time constant

Soap cleans the dirty clothes because.

Choose an answer

Its chemical constituents are changed

Itr increases the surface tension of its solution with water

It increases the surface tension of its solution with water

It is less dense than that of water

Refractive index of a medium is define das.

Choose an answer

speed of light in vaccum/speed of light in medium

Speed of light in medium/Speed of light in vacuum

Speed o flight in air/speed of light in medium

Speed of light in medium/Speed of light in air

In which device is a permanent magnet used

Choose an answer

An electric bell

An electromagnet

A plotting compass

A relay

Resonance phenomenon in a vibrating body

Choose an answer

May increase the amplitude

May decrease the amplitude

May not affected the amplitude

All of the above

A sheet of transparent material with many fine equally spaced lines ruled parallel on its surface is called

Choose an answer

Interferometer

Grating element

Ruler

Patch

Which one of the following gases posses maximum oot mean square velocity.

Choose an answer

Hydrogen

Oxygen

Nitrogen

Carbon dioxide

When the lift is moving upward with an acceleration then weight of the object will be.

Choose an answer

w = ma

w - ma

w

2 w

Which of the following has maximum specific heat.

Choose an answer

Glass

Iron

Brass

Lead

Current per unit area is called.

Choose an answer

Electric potential

Current density

Charge density

Electric intensity

The input resistance of a JFET is of the order of.

Choose an answer

1 M Mega

10 M Mega

100 M Mega

1,000 M Mega

Air bubble in water shines because of

Choose an answer

Reflection

Refraction

Diffraction

Total internal reflection

What is the power rating of a lamp connected to a 12 V source when it carries 2.5 A.

Choose an answer

4.8 W

14.5 W

30 W

60 W

The picture to be transmitted must be scanned because in T.V transmission light wave are first changing into.

Choose an answer

sound wave

Electric fluctuations

Magnetic fluctuations

Signals

When Be is bombarded by alpha particles, then we obtain

Choose an answer

electron

Proton

Positron

Neutron

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