Question # 1

The phenomenon of Brownian motion shows that

Choose an answer

Molecules exist and can be seen as bright dots moving about

Molecules moves about randomly at highs speeds

Smoke particles behaves as molecules

Smoke particles can be used as models of air molecues.

The charge on a helium nucleus is equal to the charge of.

Choose an answer

Two electrons

Two protons

Two neutrons

One proton

The word fluid means

Choose an answer

To rise

To fall

To flow

To oppose

The locus of all points in a medium having the same phase of vibration is called.

Choose an answer

Creast

trough

Wavelength

Wave front

Which of the following be used for redeciding mechanical aberration is optical instruments.

Choose an answer

Plane mirrors

Spherical mirrors

Concave lenses

Plano convex lenses

If the K.E. of a body becomes 4 times of its initial value, the new momentum will be

Choose an answer

half

Same

Double

4 times

Which vector gives the displacement from one point another in space.

Choose an answer

Null vector

Position vector

Unit vector

Distance vector

A transistor consists of.

Choose an answer

One p-n junction

Two p-n junctions

Three p-n junctions

Four p-n junction

When Photon incident on a metal produce the emission of electrons the process is called.

Choose an answer

Photo electric effect

Pair production

x-rays production

Gama ray production

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

The scientist who first noted that a compass needle was deflected when in the neighborhood of a current carrying wire was.

Choose an answer

Joseph Henry

Hans Christian Oersted

Michael Faraday

J.J. Thomson

How power factor of a circuit can be improved.

Choose an answer

Using capacitors

Using cokes

Using resistors

All of these

The direction of induced emf during electromagnetic induction can be determined by making use of.

Choose an answer

Faraday's law

Ampere;s law

Lenz's law

Laplace law

The kinetic molecular model of matter describe matter an being made up of molecules in continuous.

Choose an answer

Vibratory motion

Random motion

rotatory motion

Linear motion

A diode cn be used as

Choose an answer

Amplifier

Rectifier

Oscillator

Transistor

Why freezer a refrigerator is located in the top section

Choose an answer

Motor is not affected

Heat gained from environment is less

The entire chamber of freezer is cooled quickly

Heat gained from environment is more

The energy equivalent of 1 kg of matter a

Choose an answer

10^-15 J

1 J

10¹²J

10¹⁷ J

Conductance is the reciprocal of

Choose an answer

Inductance

Capacitance

Resistance

Admittance

What is the necessary condition for Boyle's law to hold good.

Choose an answer

Isothermal

Adiabatic

Isobaric

Isochoric

In CE amplifier phased reversal occurs when the output voltage is taken between

Choose an answer

Base and collector

Base and emitter

Collector and emitter

None of the terminals

The SI unit of heat capacity is.

Choose an answer

kg J

Kg J-1

J K-1

Kg J-1 K-1

The binary equivalent of 25 is

Choose an answer

111001

11001

1001

10101

A car is travelling with uniform acceleration the road has check posts every 100 m When the car passes one post , it has a speed of 10 m s-1 and when passes the next one its speed is 20 ms-1 What is the cars acceleration.

Choose an answer

0.67 m s-2

1.5 m s2

2.5 m s-2

6.0 m s-2

What invention is generally referred to as the first capacitor.

Choose an answer

Mason Jar

Kleist Jar

Layden Jar

Ohm Jar

The note of the lowest frequency is called

Choose an answer

beat

Overtone

Fundamental note

Harmonic note

On which of the following parameters capacitance does not depend upon.

Choose an answer

Area of the plates

Medium between the plates

Distance between the plates

Nature of material for plates

At high temperature a body generally emits redactions of.

Choose an answer

Small wavelengths

Long wavelengths

Moderates wavelengths

Zero wavelengths

If we make the magnetic field stronger the value of induced emf is.

Choose an answer

Decreased

Increased

Vanished

Kept constant

When two vectors have opposite directions we say that they are

Choose an answer

Parallel

Antiparallel

Perpendicular

Out of phase

Which quantity provides a quantitative measure of disorder.

Choose an answer

Entropy

Enthalpy

Randomness

Chaos

Which particle has zero charge and zero rest mass.

Choose an answer

Neutron

Proton

Electron

Photon

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