Question # 1

who discovered taht mass and energy are forms of each other.

Choose an answer

Issac Newton

Albert Einstein

Galileo

Khawarizmi

The image formed on the film of a simple camera is.

Choose an answer

Real inverted and diminished

Virtual, upright, and diminished

Virtual, upright and magnified

Real, inverted and magnified

In a n-type material there is an excess of.

Choose an answer

Free electrons

Holes

Quarks

Measons

Which of the following is a set of supplementary units.

Choose an answer

Radian and steradian

Radian and mole

Steradian and candela

Radian and kelvin

A plug connoted to a table lamp contains a 3 A fuse Why is the fuse needed.

Choose an answer

To increase the resistance of the circuit

To make it easier for the current to flow

To protect the wiring form overheating

To reduce the voltage across thelamp

A fluid is said to be ideal if it is

Choose an answer

Non viscous

Non viscous and incompressible

Non viscous and with steady flow

Non viscous incompressible and has steady flow

Which of the following cannot be polarized.

Choose an answer

Ultraviolet rays

Radio waves

T.V waves

Sound waves

Thermal conduction in metals differs from thermal conduction in insulators,. The reasons for this is that , in metals heat can be transported by.

Choose an answer

Electrons

Lattice vibrations

Photons

Positive ions

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

When an arrow is shot from a bow, it has K.E. which is given to it by

Choose an answer

The elongated tail

The stretched string of bow

The throw of archer

The sharp arrows head

House hold circuits are mostly

Choose an answer

Wired in sires

Wired in parallel

Made using wires of gold

Made using wires of silver

The value of critical angle of glass is

Choose an answer

45^o

42^o

48^o

52^o

The phenomenon of natural radioactivity was discovered by

Choose an answer

Lord Rutherford

James Chadwick

Herie Becquerel

Maria curie

The free electron theory explains conduction in

Choose an answer

Insulators only

Metals only

Semi conductor only

Non metals only

A heat engine with 100% efficiency would have to.

Choose an answer

Do no work

Be at uniform temperature

Use no heat

Discharge of 0 ^oC

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

On which factor mutual induction of two coils does not depends upon.

Choose an answer

Number of turns of the coils

Area of cross section of the coils

Closeness of the coils

Shape of the coils

Thermodynamics concern its primary with the

Choose an answer

Measurement of quantity of heat

Physical effects of temperature changes

Conversion of heat into other energy forms

Behavior of gases

When 5 C of charge flows through a particular resistor 10 J of energy is converted What is the p.d. across the resistor.

Choose an answer

0.5 V

2.0 V

15 V

50 V

A convention current is the movement of fluid caused by the change in.

Choose an answer

Pressure

Temperature

Densities

Volume

Who identified the first series in the spectrum of hydrogen.

Choose an answer

Lyman

Balmer

Pfund

Brackett

Which one of the following is not a measure of electric power.

Choose an answer

Vi

I2R

VR2

V2/R

Which is the heat transfer mode between an object and its environment due to circular fluid motion.

Choose an answer

Conduction

Convection

Radiation

Mass transfer

Which effect produce ultrasonic is quartz.

Choose an answer

Pyroelectric effect

Piezoelectric effect

Hall effect

Magnetostriction effect

Alternating current generator consists of a coil and a pair of.

Choose an answer

Split rings

Slip rings

Metal rings

Copper rings

Two lenses of focal length 'f' are combined the resultant focal length is

Choose an answer

f

2f

f/2

zero

Who was the first to suggest the existence of a positively charged nucleus in an atom.

Choose an answer

J.J Thomson

R.A Millikan

E.Rutherford

Neil Bohr

The electrons behave as wave because.

Choose an answer

They can be diffracted by a crystal

They can be defecting by magnetic field

They can be deflecting by electric field

they can produce ions in gases

The normal Human body temperature in Fahrenheit scale is.

Choose an answer

32 ^oF

40 ^oF

98.4^oF

212 ^oF

One gray is equal to.

Choose an answer

1 J-1 kg -1

1 J -1 kg -2

1 J 1 -g-1

1 j kg -2

The photons emitted in inner shell transition are.

Choose an answer

Alpha particle

Beta particle

Gama particle

Characteristic X-rays

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