Question # 1

Wave nature of particle was proposed by

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Einstein

Plank

De-Brogile

Max well

The CRO deflects the beam of electrons, when they passes through uniform

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electric field

gravitational field

magnetic flax

magnetic field

If both the inputs given to a gate ae 1 such that the output is 0, then it is:

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AND gate

NOR gate

OR gate

NOT gate

Both (A) and (C)

Bodies failing freely under gravity provide good example of motion under

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non-uniform acceleration

uniform acceleration

variable acceleration

increasing acceleration

A the top of the trajectory of a projectile, the directions of its velocity and acceleration are

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Perpendicular to each other

Parallel to each other

Inclined to each other at an angle of 45°

Anitparallel to each other

Which quantity has different dimensions:

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Work

Pressure

Energy

Torque

Escape velocity from surface of Moon as compared to that from Earth surface is:

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Greater

Smaller

Equal

None of thes

First law of thermodynamics tells us that heat energy can be converted into equivalent amount of work, but it is silent about

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how heat is absorbed

how heat extracted

how this conversion takes place

none of them

The nature of capacity of electrostatic capacitor depends on

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Shape

Size

Thickness of plates

Area

An electronic computer is basically a vast arrangement of electronic switches which are made from

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Resistors

Transistors

N -type crystals

P-Type crystals

Capacitors

Neutron was suggested to be in the nucleus by:

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Rutherford in 1920

Bohar in 1913

Dirac in 1928

Anderson in 1932

None of these

The bright fringes are termed as

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minimum

maximum

bright spots

dark spots

Which of the following parameter does not characterize the thermodynamic state of matter?

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Work

Pressure

Temperature

Internal energy

The nonrenewable energy source is

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Sunlight

Hydroelectric

Uranium

None of these

If the temperature difference between hot and cold body is greater the heat engine is:

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Not efficient

Less efficient

More efficient

NOne of above

A fly wheel of moment of inertia 500 kgm²is rotating at angular speed of 6 rad/s. What torque is needed to stop wheel in 3s

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500 Nm

1000 Nm

1500 Nm

2000 Nm

The resultant of two equal forces is double of either of the force.The angle between them is

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0°

60°

90°

120°

The optical fibre has a layer over the central layer is called cladding of refractive index

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High

Low

Very high

None of these

When a body acquired terminal velocity falling in a viscous medium than the acceleration

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a = -ve

a = +ve

a = g

a = zero

The maximum drag force on a falling sphere is 9.8 N, its weight is

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1 N

9.8 N

4.9 N

None of these

Pressure may be defined as_____per second per unit area:

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Change in force

Change in momentum

Change in energy

Work done

In SI system the correct unit of Planck's constant is

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Kelvin

Js

Lux

Candela

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