Question # 1

The north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be:

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Antoclockwise

Clockwise

First Clockwise and then Antoclockwise

First anticlockwise and then Clockwise

Cathode ray oscilloscope works by deflecting a beams

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Neutrons

Protons

Electrons

Positron

A current generator device converts:

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Mechanical energy into chemical energy

Chemical energy into electrical energy

Mechanical energy into electrical energy

Both b and c

In 1905, the special theory of relativity was proposed by

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Einstein

Bohr

Maxwell

De Broglie

Target material used in x-rays tube have following properties.

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High atomic number and high melting pouint

High atomic number and low melting pouint

Low atomic number and low melting pouint

High atomic number only

In glass, molecules are irregularly arranged so it is known as.

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Solid

Liquid

Solid liquid

Gas

At resonance, the behavior of R-L-C series circuit is.

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Resistive

Capacitive

Inductive

Modulative

When some di electric is inserted between the plates of a capacitor, then capacitance.

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Decreases

Increases

Becomes zero

Becomes infinity

By emitting Beta particle and gama particle simultaneously the nucleolus changes in its charges by

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N

N/2

N/4

3N/4

Impedance is denoted by:

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A

Z

P

Q

The Compton effect is associated with

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X-rays

y-rays

Positive rays

ß-rays

The number of Isotopes of cesium are.

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4

32

22

36

Various types of cancer are treated by

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Carbon -14

Nickel -63

Cobalt -60

Strontium -90

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

The SI unit of resistivity is.

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Ohm m-2

Ohm m-1

Ohm m

Ohm

Eddy current is one cause energy loss in

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A.C. generator

Transformer

D.C. motor

D.C. generator

The gain of transistor amplifier depends upon

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Resistance connected with collector

Resistance connected with base voltage

Input voltage

Output voltage

The existence of positron in 1928 was predicted by

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Anderson

Dirac

Chadwick

Plank

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