Question # 1

Curie is a unit of

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reluctance

resistivity

binding energy

radioactivity

In AND gate, the output is 1 if:

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Both inputs are 0

Both inputs are 1

Only one input is 0

Both (A) and (B)

Both (A) and (C)

A signal is amplified at the output without any change of phase, if it is applied at the

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inverting input

non-inverting input

at any of the input

none of these

The study of fluid in motion basically involves law of conservation of:

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Mass

Energy

Change

Both A and C

Both A and B

The gavanometer constant of a moving coil galvanometer is given by

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K=BAN/C

K=BN/CA

K=NAC/B

K=C/BAN

The phase angle of a series RLC circuit at resonance is

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180°

90°

0°

None of the these

The magnetic field outside the solenoid due to current is

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strong

zero

weak

uniform

When the atomic particle are moving with velocities approaching that of light:

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Newton's laws become valid

Relativistic effects become prominent

Botha(A) and (B) are valid

Neither (A)nor (B)

There mass becomes zero.

An emf is set up in a conductor when it:

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is kept in a magnetic field

is kept in a electric field

Move across a magnetic field

Both (A) and (B)

None of these

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

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Mg

1/2 Mg

Zero

2 Mg

Michael Faraday is known by his work on

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Nuclear strong force

Gravitational force

Nuclear weak force

Electric force

None of these

The diffraction grating is used to measure

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wavelength of light

focal length of a lens

refractive index of prism

polarization of light

Which of the given pair have same dimension

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Stress, pressure

Elastic modules, pressure

Stress, elastic modules

All have same dimension

Wavelength of light, on the average, is given by:

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10^-14m

10^-10m

10^-6m

10^-4m

If an iron ball and a wooden ball of the same radius was released from a height h in vacuum,then time taken by both of them to reach ground will be

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Unequal

Exactly equal

Roughly equal

Zero

The artillery shells travels along parabolic paths under the influence of

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magnetic field

electric field

electromagnetic field

gravitational field

Which of the following is a scalar quantity?

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Displacement

Electric field

Acceleration

Work

Newtons law of motion defines

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Mass

Force

Acceleration

Speed

The minimum number of unequal forces whose vector sum can be zero is

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3

2

1

4

A longitudinal sinusoidal wave has wavelength of 1cm and a period of 2sec. Its wavevelocity is:

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50 cm/ sec

0.5 cm/ sec

5 m/ s

0.005 m/ sec

The systolic blood pressure comes when

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Vessel collapse

Cutting off the blood flow

None of these

All of these

A source of a magnetic field is:

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An isolated magnetic

A static electric charge

A moving electric charge

None of these

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