Question # 1

For Holography we use

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X ray

Laser

gama rays

Beta rays

X_L=

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2πfL

1/2πfL

2πfL

fL/2π

Total flux through a closed surface depends on.

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Shape of surface

Medium only

Charge enclosed only

Charge and Medium

Electron volt is unit of:

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Chemical energy

Potential energy

Nuclear energy

heat energy

Energy needed to produce an electron hole in solid state detector is.

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1 to 2 eV

3 to 4 eV

6 to 7 eV

8 to 9 eV

Substance which break just after the elastic limit is reached are called as.

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Ductile substances

Hard substances

Britto substances

Soft substances

A charged conductor has charge on its.

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Inner surface

Outer surface

Middle surface

Surrounding space

One of the applications of electrostatic induction is

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Laser

Photocopier

X ray machine

Wilson cloud chamber

The P.D develop in case of germanium is:

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0.3

0.7

0.5

0.9

The process by which lesser beam can be used to generate 3-dimensional images of objects is called

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Holography

Geo graphy

Tomography

Radio graphy

Weber is the unit of

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Magnetic flux

Permeability

magnetic force

None of above

Logic gate can control some physical parameters like.

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Temperature, Pressure

Resistance, Inductance

Capacitance, Impedance

Current, voltage

The application of mutual induction is a.

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D.C. motor

Radio

Television

Transformer

The first superconductor was discovered in:

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1831

1911

1921

1876

A rheostat can operate as.

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Amplifier

Potential divider

Oscillator

Transformer

Bremsstrahlung radiation are examples of

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Atomic spectra

Molecular spectra

Continuous spectra

Discrete spectra

Mutual induction play role in.

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Generator

D.C. motor

Galvanometer

Transformer

The unit of magnetic induction B is

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Coulomb

Ampere

Coulomb/ampere

Weber/m²

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