Question # 1

The interference between two sounds of slightly differed frequency is

Choose an answer

shock wave

Beats

Sonic boom

Doppler's effect

Capacitance is directly proportional to

Choose an answer

Distance between the plates

Di electric strength

Area of the plates

Charge multiplied by the applied voltage

At absolute zero of temperature.

Choose an answer

The molecular energy is zero

Molecules have translational K.E

Molecules have rotational K.E.

Molecules have maximum energy

A heat engine with 100% efficiency would have to

Choose an answer

Do no work

Be at a uniform temperature

Use no heat

Discharge at 0^oC

Which principle is in effect when a ship displaces ocean water.

Choose an answer

Bernouli's

Pascal's

Hook's

Archimedes

The use fulness of x rays is largely due to their

Choose an answer

Mass

Density

Penetrating power

Rest mass

The point midway between the lens surface on its participial axis

Choose an answer

Optical centre

Principal focus

Focal plane

Focal length

A ball is thrown straight up What is its acceleration just before it reaches the highest point.

Choose an answer

Zero

slightly less than g

Exactly g

Slightly greater than g

What should be the shape of an ideal thermometer.

Choose an answer

Sphereical

Cubical

Cylindrical

Rectangular

What would be the colour of sky n the absence of atmosphere.

Choose an answer

Blue

Indigo

Red

Black

Reciprocal of the focal length is called.

Choose an answer

Radios of curvature of the lens

Power of the lens

Aperture of the lens

Resolving power

Distance between two consecutive nodes or antinodes is equal to.

Choose an answer

Lamda /4

Lamda

Lamda /2

2 lamda

At high temperature a body generally emits redactions of.

Choose an answer

Small wavelengths

Long wavelengths

Moderates wavelengths

Zero wavelengths

The temperature scale based upon triple point of water was given by

Choose an answer

Rumford

Carnot

Kelvin

Celsius

Which scientist made the fist successful terrestrial measurement of the speed of light

Choose an answer

Isaac Newton

Ole Romer

Armand Fizeace

Albert Michelson

Angular simple harmonic motion is.

Choose an answer

Periodic rectilinear motion

Independent of any applied torque

Periodic rotational motion

Never defined

The radius of second orbit of hydrogen atom is

Choose an answer

0.071 A

0.142 A

4.752 A

9.5298 A

In radiotherapy X-rays are used to.

Choose an answer

Treat cancer

Delect bone fracture

Cure heart diseasee

All of the above

Which one of the following is not a dimensionless quantity.

Choose an answer

Radian

pi

Decibel

Force

Which of the given factors is increased in a step down transformer.

Choose an answer

Voltage

Current

Wattage

Resistance

The quality of sound

Choose an answer

Decreases with pitch

Varies directly as its pitch

Varies inversely as its pitch

Depends upon the overtones present there

The process in which a system undergoes a change of state at constant volume.

Choose an answer

Isobaric process

Isochoric process

Isothermal process

Adiabatic process

Which of the following a natural example of a capactor.

Choose an answer

Fire

Snow

Air

Lightining

In which reaction two or more small light nuclei nuclei come together or fuse to form a large nucleus.

Choose an answer

Radioactivity

Radioactivity dating

Nuclear fusion

Nuclear fission

Which of the following scientists is known for his exceptional work in the field of optics.

Choose an answer

Albert Einstein

Issac Newton

Ibn al Haithem

Alberuni

A mass accelerates uniformly when the resulting force acting on it.

Choose an answer

is zero

Is constant but not zero

Increases uniformly w.r.t time

Is proportional to the displacement of the mass from a fixed point

The unit of Rydberg constant R is

Choose an answer

m

m3

m^-1

m-2

Faraday's law was deduced in

Choose an answer

1826

1831

1836

1841

Absolute zero may be regarded as the temperature of which

Choose an answer

Water freezes

All substances are solids

All gases become liquids

Molecular motioning a gas would ceases

The continuous x rays spectrum is obtained due to

Choose an answer

Deceleration of impact electrons

Breaking potential

Excitation potential

Ionization potential

In an isochoric process.

Choose an answer

Volume changes

Pressure changes

Temperature changes

Volume remains constant

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