Question # 1

When there is no relative motion between the magnet and coil, the galvanometer indicated

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No current in the circuit

An increasing current

A decreasing current

A constant current

Either B or C

Second's pendulum is the pendulum whose time period is:

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1 second

2 second

3 second

None of these

Teh consumption of energy by a 1000 watt heater in half an hour is:

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5 Kwh

0.5 Kwh

2.5 Kwh

3.2 Kwh

It is customary represent a current flowing towards the reader by a symbol

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(x)

(+)

(.)

(-)

(÷)

X-rays produced in a tube operating at 10⁵V. The speed of X-rays produced is

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3 x 10⁸m/s

3.1 x 10⁸m/s

2.8 x 10⁸m/s

1.88 x 10⁸m/s

The first super conductor was discovered in

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1811

1890

1901

1911

How much time, theα-particle more massive than an electron

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600

7000

5000

15000

The field around a moving charge is called

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magnetic field

conservative field

non-conservative field

none of these

When body moves with increasing acceleration, its velocity time graph is a

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straight line

horizontal straight line

vertical straight line

curve

Direction of motion ______ in circular motion:

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Changes off and on

Changes continuously

Does not change

None of them

Relativistic mechanics is a branch of physics, which deal with the bodies moving with velocities:

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More then c

Approaching c

Equal to c

Much less than x

Longitudinal waves do not exhibit

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Refraction

Reflection

Diffraction

Polarization

The magnitude of X and Y component of P are 7 and 6.The magnitude of X and Y components of P + Q are 11 and 9 respectively. What is the magnitude of Q

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9

8

6

5

The work by the body is maximum when it has angle

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30^o

60^o

90^o

0^o

When the fuel ignited it turns to a gas at

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Low pressure

High pressure

Extremely high pressure

None of these

The original source of Wind energy is

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Tides

Waves

Sun

Moon

If the magnification M₁ = 20.0 for objective and M₂ = 12.0 then total magnification is

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200

240

260

280

In an optical fibre the speed of light is

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Directly proportional to its refractive

Inversely proportional to its refractive inedex

Independent of refractive index

Directly proportional to square of refractive index

A glass plate on which a large number of very fine equidistant parallel lines are drawn is called

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convex lens

thin film

diffraction grating

interferometer

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

The effect of applying a force on a moving body is to change

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its direction of motion only

its speed of motion only

both the direction and speed of motion

its inertia only

The solids which have structure in between order and disorder are called

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amorphous solids

polymeric solids

crystalline solids

all of them

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