Question # 1

In Compton scatting, the value of shift is equal to Compton's wavelength, when X-rays is scattered at the angle of.

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90^oC

Zero

120^oC

45^oC

Coulomb /volt is called.

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Farad

Ampere

Joule

Henry

Power dissipation is a pure inductive or in a pure capacitance circuit is:

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10⁶

0

10^∘

Maximum

The Basic circuit element in a D.C. circuits which controls the current and voltage is

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Resistor

Inductor

Capisitor

Transistor

Which of the following are not hadrons.

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Muons

Mesons

Positrons

Neutrons

The most common source of an A.C. Voltage is.

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Motor

Cell

Generator

Thermo couple

Potassium Cathodes in photocell emit electrons for a light.

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Visible

Infra red

Ultra violet

X rays

A transistor has parts:

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2

3

4

5

The internal resistance of a capacitor is called:

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Impedance

Resistance

Reactance

Conductance

The energy of photon is givne by

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mv2/2

hf

Va e

mac¹

Compton effect proves.

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Wave nature of radiation

Wave nature of particle

Dual nature of particle

Particle nature of radiations

In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.

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90^o

270^o

0^o

180^o

The AC system is preferred to DC system because:

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AC voltage can be easily changed in magnitude

DC motor angular velocity is affected badly

High voltage AC transmission is less efficient

Domestic appliance require AC voltage for their operation

When the medium is insulator the elecrostatic force between the charges is

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Decreased

Zero

Increased

None of above

A pair of quark and anti quark makes a.

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Meason

harden

Lapton

Baryon

There is no charge in A and Z of any radioactive element by the emission of.

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Alpha particle

Beta particle

Gama particle

X- rays

Lenz's law presented in

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1834

1934

1826

1836

The toner of printer is given

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Positive charge

Negative charge

Neutral

First positive then negative

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