Question # 1

What type of process is the Carnot's cycle.

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Reversible

Irreversible

Neither reversible nor irreversible

May be reversible or irreversible

The value of magnetic field strength for parament magnets is.

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Unity

Infinity

Zero

Two

A water wave is an example of

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Electromagnetic wave

Longitudinal wave

Transverse wave

Reverberation

How do solar heat and light reach the Earth.

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By radiation

By convection

By conduction

By conduction and convection

An alternating current can be produced by

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Turbine

Electric motor

Generator

Trnasormer

The simple form of particle accelerator is.

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Cathode ray tube

Oscillator

_Amplifier

Phase locked loop

The velocity of light was determined accurately by

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Newton

Huygen

Michelson

Young

Direct current generators use.

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Coiled rings

Split rings

slip rings

solenoid rings

The centre of gravity of a rectangular or parallel gram shaped plate is.

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At the centre

At the intersection of diagonals

At the intersection of medians

At the axis of rotation

The reciprocal of decay constant lamda of a radioactive element is.

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Half life

Mean life

Total life

Curie

Fiber optics system can be used for.

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Word processing

Image processing and receiving

Image transmitting

All of the above

The SI unit of current gain is.

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Ampere

Ampere metre

Ampere volt

It has no unit

What invention is generally referred to as the first capacitor.

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Mason Jar

Kleist Jar

Layden Jar

Ohm Jar

Inductance are measured in

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Coulombs

Volts

Henrys

Farads

How are the electrons produced in a cathode ray tube.

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By applying an electric field to the x plates

By heating a metal filament

By ionization of the air

By radioactive decay

Drag force between two layers under consideration depends on

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Distance between the layers

Surface area of layers

Relevant velocity between them

All of the above

Who explained Browian movement quantitatively.

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Issac Newton

albert Einstein

James Maxewll

Robert Brown

A physical quantity not directly involved in rotating motion is.

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Moment of inertia

Mass

Angular velocity

Torque

Low frequency response of an amplifier is mainly limited by.

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Biasing configuration

Coupling capacitor

By pass capacitor

Input impedance

What is the human body temperature in Celsius scale.

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30 oc

36. 9 oC

98. 4 oC

100 oC

An A.C. dynamo operates on the principle of

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Mutual induction

Self induction

Electromagnetic induction

Mechanical induction

The mass that appears in Newton's second law is known as.

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Rest mass

Gravitational mass

Inertial mass

Weight

With increase in temperature the angle of contact of liquid.

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Increases

Decreases

Becomes zero

First increase then decreases

The moment of linear momentum is equal to

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Implies

Torque

Angular momentum

Couple

A body attached to a spring is pulled to a distance of 20 cm If the value of spring constant is 48 N m-1, the amount of force applied will be.

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4.8 N

9.6 N

96 N

192 N

A steel of which material should be placed between the plates of a parallel plate capacitor in order to increase its capacitance.

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tin

Iron

Copper

Mica

Capacitance is define das

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VC

Q/V

QV

V/Q

X -rays are similar in nature to.

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Alpha particles

Beta particles

Gama rays

Photons

The value of open loop gain for the amplifier is

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zero

very low

very high

of an intermediate vaue

Both xenon and cesium each have

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24 isotopes

28 isotopes

32 isotopes

36 isotopes

A girl standing 150 m in front of tall building fires a pistol A boy standing 350 m behind her hears two bangs 1 s apart from this information what is the speed of sound in air.

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150 m s-1

300 m s-1

280 m s-1

330 m s-1

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