Question # 1

The dimensions of Plank's constant is same as that of.

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Energy

Power

Acceleration

Angular momentum

The value of Stefan is constant is:

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4.57 x 10^-8 m²k²

5.67 x10^-8 wm^-2k^-4

6.67x 10^-11 wm²k⁴

7.45 x 10^-9 m² wk³

The photon with energy greater than 1.02 MeV can interact with matter as.

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Photoelectric effect

Compton effect

Pair production

annihilation of matter

The main use of A.C is

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Minimum line losses

Long distance transmission

Stepping up to required voltage only

Steeping down to required voltage only

Which pair belongs to hadrons.

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Protons and Neutrons

Neutrons and electrons

Photons and electrons

positrons and electrons

unit of Plank's constant is same as that of.

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Acceleration

Angular momentum

Linear momentum

Entropy

The symbol of p-n-p transistor is

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In three phase voltage across any two lines is about.

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220 V

230 V

400 V

430 V

NIBA =

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cθ

θ/c

c²θ

c²/θ

A voltmeter is always connected in

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Parallel

Series

Perpendicular

Straight line

The anodes in cathode ray oscilloscope.

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Control number of waves

Control brightness of sept formed

Accelerate as well as focus beam

Negative potential w.r.t to chithode

A capacitor is perfectly insulator for:

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Direct current

Alternating current

Direct as well as alternating current

None of these

Output resistance of an op amp is

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High

Low

Zero

Equal to input resistance

In case of A.C. through resistor V and I are

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At 0^o with each other

At 180 ^o with each other

At 90^o with each other

At 270 ^o with each other

SI unit of reactance is.

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Ohm

Mho

Farad

Henry

Which one of the following is correct

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All of above

The amount of energy equivalent to 1 a.m.u is

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931.5 MeV

93.15 MeV

9.315 MeV

2.224 MeV

1 rad =

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0.001Gy

0.01Gy

0.1Gy

1.01Gy

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