Question # 1

For Holography we use

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X ray

Laser

gama rays

Beta rays

The electric flux through closed surface depends upon

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Charge

Medium

Geometry

Charge and Medium

Electric power:

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Vx1

V²x1

V/1

V/1²

Unit (S.I) of temperature coefficient of resistivity of a material is

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K

K^-1

^oC

K^-2

The potential difference between the head and tail of an electrical to

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600 Volt

700 Volt

800 Volt

900 Volt

The word amorphous means:

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Regular structured

Without form or structure

Frozen structured

None of above

The magnitude of motional emf is given by

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The total flux through a closed surface.

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Directly proportional to shape and geometry

Independent of medium

Depend on shape and geometry

Dependent on medium and the charge enclosed

Write the SI unit of magnetic flux.

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Tesla

Weber

Weber m-2

Tesla m2

The unit of impedance is

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Farad

Henry

Tesla

Ohm

Two opposite point charge of same magnitude separated by distance 2d, electric potential mid way between them is.

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1 V

2 V

Zero

V/2

Binding energy for deuteron nucleus is given by

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2.8 MeV

2.23 MeV

2.28 MeV

2.25 MeV

Magnetic lines of force are.

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Imaginary

Real

Perpendicular

In phase with electric lines of force

The current through a resistance of 100 Ohm when connecting across a source of 220 V is.

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22000 A

22 A

2.2 A

0.45 A

Number of Isotopes of Neon gas are

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2

3

4

1

When a wire of length 'l' and resistance R is cut into two equal parts then resistivity of each part.

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is doubled

Remains the same

Is halved

Is one fourth

A rheostat can operate as.

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Amplifier

Potential divider

Oscillator

Transformer

If current flowing through a solenoid becomes four times, then magnetic field inside becomes.

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two times

three times

four times

Half

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