Question # 1

The place for soring the nuclear waste is

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Ocean

Damping in earth

Damping in desert

Bottom of old salt mines

An electric field cannot deflect

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X-rays

a-particles

ß-particles

None of these

The particles which do not experience strong force are called.

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Baryons

Hadrons

Mesons

Laptons

Number of Isotopes of Neon gas are

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2

3

4

1

Which series lies in the ultraviolet region.

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Balmer series

Bracket series

Ptund series

Lyman series

Who explained the photo electric effect.

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Max Plank

Einstein

Henry

Rutherford

During electrolysis process, density of CuSO₄ solution

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Remains constant

Decreased

Increased

None of these

In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.

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NwAB

2pi f

Maximum

Zero

The inductive reactance of a coil is direction proportional to.

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Inductance

Resistance

Frequency of A.C.

Both frequency of A.C. and inductance

The Weber is unit of measure of:

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Conductance

Electric current

Magnitic flux

Electric flux

For workers in nuclear facilities is, a weekly does of is normally considered safe

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1.0 msv

5.0 msv

2.0 msv

3.0 msv

Thermosouple is an arrangement of two different metals:

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Two convert heat energy into electrical energy

To produce more heat

To convert heat energy into chemical energy

To convert electrical energy into heat energy

A moving charge is surrounded by:

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2 Fields

3 Fields

4 Fields

None of these

If the potential difference across two plates of capacitor is doubled, then energy stored in it will be.

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Two times

Eight times

Four times

Remain same

Induced emf in A.C. generator can be increased by

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Decreasing area of coil

Decreasing magnetic field

Increasing area of coil

Slowing down speed of coil

Unit of decay constantλ is:

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ms

m^-1

m

S^-1

The electric potential at a mid point in an electric dipole is.

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0 V

0.5 V

1 V

1.5 V

Mutual induction has a practical role in the performance of the.

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Radio choke

Transformers

A.C. Generator

D.C. Generator

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