Question # 1

Neutron was disvovered by:

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Rutherford in 1920

Chadwick in 1922

Bohr in 1913

Compton in 1927

None of these

When heat is added into the system then change in entropy is

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negative

positive

zero

any one of them

Micheal Faraday and joseph Henry belong respectively to:

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USA and England

England and France

England and USA

USA and France

None of these

A succession of events which bring the system back to its initial condition is called

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reversible process

irreversible process

a cycle

none of them

Which quantity has the same dimension as that of impulse?

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KE

Power

Momentum

Work

SI Unit of work is

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Nm^-1

Joule

Nms

Both a and b

A curie represents a very strong source of

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α-particle

β-particle

γ-particle

none of these

The heat required to raise the temperature of one mole of the gas through 1 K at constant volume is called

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heat capacity

specific heat capacity

molar specific heat

molar specific heat at constant volume

The magnitude of induced emf depends upon the

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Rate of decrease of magnetic field

Rate of change of magnetic field

Rate of increase of magnetic flux

Constancy of magnetic field

None of these

0.0001210 has ____________ significant figures.

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Four

Three

Seven

Eight

Essential characteristic of equilibrium is

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Momentum equal to zero

Acceleration equal to zero

Kinetic energy equal to zero

Velocity equal to zero

One radian is equal to

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360^o/π

58^o

57^o

57.3^o

Rocket engines lift a rocket from the earth surface because hot gas with high velocity

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Push against the earth

Push against the air

React against the rocket and push it up

Heat up the air which lifts the rocket.

If L and R denote inductance and resistance respectively.then the dimensional formula of L/R is:

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(M°L°T°)

M°L°T°

(M²L^°T²)

(MLT²)

Which row is correct for fission and for fusion?

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Produces larger nuclei

Produces smaller nuclei

The device which is used to measure the degree of hotness or coldness of the object.

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Thermometer

Barometer

Hypermeter

None of these

The SI unit of momentum is

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Kgms^-1

Kgms^-2

NS

A and C

The viscosity of fluid is described by

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Resistive forces of fluid

Frictional effect between different layers of a fluid

Flowing speed of fluid

None of these

A spectrum which contains all wavelengths without any break is called

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Emission spectrum

Line spectrum

Continuous emission spectrum

All of them

A ball is dropped downwards After 1 second another ball is dropped downwards from the same point.What is the distance between them after 3 seconds?

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25 m

20 m

50 m

9.8 m

A passenger lift accelerates upwards. What change would a passenger inside the lift standing on a weighing machine notice in the weight shown on the machine?

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a decrease in the reading on the scale

no change in the reading on the scale

an increase in the reading on the scale

an increasing in the weight

The working of carburetor of a car uses

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Gravitational law

Equation of continuity

Bernoulli's theorem

Stock's law

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