Question # 1

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 is the best sound source to produce a pure note.

Choose an answer

Tuning fork

Flute

Drum

Harmonium

What will be excitation energy in the third orbit of hydrogen atom.

Choose an answer

0.66 eV

0.85 eV

1.5 eV

5.4 eV

Work function is generally expressed in.

Choose an answer

Electron volt

Joules

Newtons

Gauss

interference and diffraction of light support the

Choose an answer

Wave nature of light

Transverse nature of light waves

Quantum nature of light

Electromagnetic nature of light

Which one of the following gates in a a universal gate.

Choose an answer

OR

AND

NOT

NAND

The source of geothermal energy is

Choose an answer

The fusion in the sun

the radioactive decay in the earths interior

the rotation of earth around the sun

The rotation of earth around its own axis

Periodic motion is a motion.

Choose an answer

Under the influence of an elastic restoring force

That repeats it self in equal intervals of time

Back and forth over the same path

With constant acceleration

At which temperature a ferromagnetic material becomes paramagnetic on healing.

Choose an answer

Kelvin temperature

Celsius temperature

Curie temperature

Fahrenheit temperature

If the base emitter junction is forward biased and base collector junction is reverse biased the BJT is in.

Choose an answer

cut of mode

Amplification mode

Saturation mode

Inversion mode

A magnet is pushed horizontally towards a coil of insulated wire inducting an emf in the coilin which direction does the coil try to move.

Choose an answer

Downwards

Upwards

Away from the magnet

Towards the magnet

The electric field intensity of a point charge varies.

Choose an answer

Directly as the square of the distance from the charge

Directly as the square of the charge

Inversely as teh distance from the charge.

Inversely as the square of the distance from the charge

If the presence of air friction, the path of a projectile appears as.

Choose an answer

Straight line

Parabola

Hyperbola

zig zag

The property of an object that causes it to create a magnetic field in opposition to an externally applied magnetic field is.

Choose an answer

Paramagnetism

Diamagnetism

Ferromagnetism

Demagnetism

The specific heat capacity of a substance is the amount of heat required to.

Choose an answer

Raise its temperature by 1 K

Raise the temperature of 1 kg of the substance by 1 K

Melt 1 kg of the substance

Boil 1 kg of the substance

What will be the effect on the speed of a Transerv wave in a string. If tension is made 4 times.

Choose an answer

Remains the same

Increase a times

Becomes double

Becomes 3 times

What is the magnifying power of a convex lens of focal length 5 cm.

Choose an answer

3

5

6

20

A body is equilibrium may not have

Choose an answer

Momentum

Velocity

acceleration

K.E.

If D1 and D2 are the powers of two lenses placed in contact then the power of the combination will be.

Choose an answer

D1+D2

D1-D2

D1/D2

D1 x D2

One particle having zero mass and zero charge is.

Choose an answer

Positron

Electron

Neutrino

Neutron

What is the traditional name for a capacitor

Choose an answer

Choke

Condenser

Transformer

Inductor

Which liquid can flow easily.

Choose an answer

Traacle

Pitch

Ether

All flow with same rate

What is used in an electric circuit to allow current in one direction only.

Choose an answer

A fuse

An ammeter

A diode

A relay

The pressure of a gas is directly proportions to

Choose an answer

Mean velocity of the molecules

Mean square velocity of the molecules

Root mean square velocity of the molecules

Instantaneous velocity of the molecules

The circumference of earth was measured by

Choose an answer

Alberuni

Alkundi

Ibn al haithem

Issac Newton

If an athlete uses 50 J of energy to lift a load in 2 s his muscular power is.

Choose an answer

125 W

250 W

500 W

1,000 W

A device used to measure the strain of an object and it is a type of resistor that changes value with applied strain is a

Choose an answer

thermistor

Strain gauge

Thermocouple

Potentiometer

Which thermodynamic law state taht the entropy of a perfect system approaches zero.

Choose an answer

Zeroth law of thermodynamics

First law of thermodynamics

Second law of thermodynamics

Third law of thermodynamics

The neutral atoms of all isotopes of the same element contain the same numbers of.

Choose an answer

Electrons and protons

Electrons and neutrons

Neutrons

Neutrons and protons

Which electrical quantity has the same units as electromotive force.

Choose an answer

Charge

Current

Potential difference

Power

A wire stretches 8 mm under a load of 60 N A second wire of the same material with half the diameter and a quarter of the original length of the first wire, is stretched by the same load What is the extension of the wire.

Choose an answer

1 mm

4 mm

8 mm

16 mm

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