Question # 1

The number of lines per unit area passing perpendicular through an area is called

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Flux

Electric intensity

Both (a) , (b)

None of these

In metal detector, we use.

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L-C circuit

R-L circuit

R-C circuit

RLC series circuit

the force between two charge is 28 N. If paraffin wax of relative permittivity 2.8 is introduced between the charges as medium, then the force reduces to.

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25 N

20 N

10 N

15 N

What is difference is isotopes

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Number of protons

Number of neutrons

Number of electrons

Charge number

The unit of impedance is.

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Henry

Hertz

Ampere

Ohm

Electro encephalon graph is the diagnostic test for the working of.

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Eye

Heart

Brain

Lungs

Yield stress is another name of

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Plasticity

Proportional limit

Elastic limit

Both (b) and (c)

Application of wave like nature of particle is

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Photodiode

Optical microscope

Electron microscope

Compound microscope

A substance having the negative temperature co efficient of resistivity out of the following is.

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Carbon

Iron

Tungsten

Gold

Balmer series lies in region of electromagnetic spectrum.

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Infrared

Visible

Ultraviolet

Fra infrared

The series in infrared region is:

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Paschen series

Bracket series

Pfund series

All of above

Concept of electric field lines was given by:

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Michelson

Henry

Michael faraday

Oersted

How many neutrons are there in the nuclide Zn⁶⁶?

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22

30

36

66

The velocity of an oscillating charge as it moves to and fro along a wire is.

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Changing

Constant

Infinite

zero

Photo diode is used for detection of.

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Heat

Magnet

Current

Light

The Lenz's law is also statement of:

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Law of conservation of mass

Law of conservation of charge

Law of conservation of energy

Law of conservation of momentum

A dot represents the direction of magnetic field.

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Out of page

Into the page

Tangent to page

Parallels to page

The electric intensity at infinite distance from the point charge is

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Infinite

Zero

Positive

Negative

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