Question # 1

The Rutherford atom according to classical theory is

Choose an answer

Stable

Unstable

Partially stable

Quantized

A body travels with a speed greater than the speed of sound What would be the wave front shape.

Choose an answer

Ellipitical

Spherical

Conical

Parabolical

Which electrical component uses a low current circuit to switch a high current ON or OFF.

Choose an answer

Capacitor

Diode

Reed rely

Thermistor

Diffraction is a special type of.

Choose an answer

Polarization

Interference

Dispersion

Scattering

Two pure inductors each of self inductance L are connected in parallel The total inductance of the combination is.

Choose an answer

L

2L

L/2

L/4

A large ripple tank with a vibrator working at a frequency of 30 Hz produce 25 complete waves in a distance of 50 cm. The velocity of the wave is.

Choose an answer

9.53 cm s-1

60 cm s-1

750 cm s-1

1500 cm s-1

In rotational motion, the analogue of force is.

Choose an answer

moment of inertia

Moment of force

Torque

Rotational inertia

The number 0.02 x 10^-8in standard form will be written as.

Choose an answer

2 x 10^-10

2 x 10^-8

20 x 10^-8

20 x 10^-6

The magnetic flux density at the centre of a long solenoid is dependent on.

Choose an answer

The number of turns per unit length of the silenced

The volume of the solenoid

The diameter of each turn of the solenoid

All of above

Who gave the idea of matter wave.

Choose an answer

De Broglie

Planck

Einstein

Huygen

When a light ray enters from air into water then its wavelength.

Choose an answer

Increases

Decreases

Become infinity

Remains constant

Which base units would be needed to express the SI unit of potential difference.

Choose an answer

Kg and A only

m , s and A

kg, m, s and A

mg, m and s

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

Choose an answer

mouse

Cat

Dog

Rabbit

Who discovered a relation between electric and magnetic field.

Choose an answer

Hans Christian Oersted

Michelson Faraday

Lenz

Hertz

On which parameter internal energy of an ideal gas depends upon.

Choose an answer

Volume

Mass

Pressure

Temperature

The first artificially produced nuclear transmutation was accomplished by.

Choose an answer

Curie

Rutherford

Becquerel

Chadwick

The escape velocity

Choose an answer

Is independent of mas of the body

Increases with the increases of mass of the body

Decreases with the decreases of mass of the body

Depends upon the type of body used

The working of the rocket is based on the principle of.

Choose an answer

Electromagnetism

Conservation of momentum

Floatation

Hydraulic system

Among different elements of the periodic table which of the following atoms is the simplest.

Choose an answer

Carbon

Oxygen

Hydrogen

Nitrogen

The centre of mass of a system is a point where an applied force causes the system to move.

Choose an answer

With rotation

Without rotation

Fastly

Slowly

Two tuning forks of frequencies 260 Hz and 257 Hz are sounded together the number of beats produced per seconds is.

Choose an answer

1

3

4

257

Which one of the following is not a dimensionless quantity.

Choose an answer

Radian

pi

Decibel

Force

Which statement about convection is correct.

Choose an answer

Brownian motion is a form of convection

Convection occurs only in gas

Convection results from a density change

Evaporation is a form of convection

Echoes arise from

Choose an answer

Reflection

Refraction

Diffraction

Dispersion of sound waves

A tank 3 m long 1 m wide and 0.5 m deep is filled with oil which weight 12,000 N . The pressure on the base of the tank due to oil is.

Choose an answer

1,000 Pa

4,000 Pa

3,000 Pa

6,000 Pa

The total energy of an electron in an orbit around the nucleus is.

Choose an answer

Zero

Unity

Infinity

Negative

The viscosity of an ideal fluid is

Choose an answer

Infinity

Unity

Zero

0.5

The electron behave an waves because

Choose an answer

They can be diffracted by a crystal

They can produce ions in gases

They can be deflected by magnetic field

They can be deflected by electric field

In a transistor which one is very thin.

Choose an answer

Collector

Emitter

Base

Depletion region

Which of the following in the best container for gas during adiabatic process.

Choose an answer

Copper vessel

Thermos flask

Glass container

Wooden container

Temperature of a system remains constant in

Choose an answer

Adiabatic process

Isobaric process

Isothermal process

Isochoric process

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