Question # 1

The number of neutrons in the nucleus of tritium is:

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1

2

3

4

the range of galvanometer to measure current is:

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few amperes

few micro amperes

few milli amperes

mega amperes

The part of waves at which particles of the medium are below the normal position are called:

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Extreme positon

Crest

Trough

None of these

The cathode ray oscilloscope consists of main parts:

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Two

Three

Four

Five

When resistances are connected in series the current passing through them is:

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Different

Zero

The same

None of these

In liquids and gases the current is due to the motion of:

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Negative charges

Positive charges

Both positive and negative charges

None of these

What happens to the intensity or the brightness of the lamps connected in series as more and more lamps are added:

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Increases

Decreases

Remains the same

Cannot be predicted

battery is one of the source of:

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heat

light

current

sound

Which types of image is produced by the converging lens of human eye if it view a distant object?

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Real , erect, same size

Real, inverted, diminshed

Virtual, erect,diminshed

Virtual, inverted, magnified

The combined resistance of two identical resistors, connected in series is 8Ω. Their combined resistance in a parallel arrangement will be:

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2 Ω

4 Ω

8 Ω

12 Ω

If we double both the current and the voltage in a circuit while keeping its resistance constant, the power.

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remains unchanged

halves

doubles

four time

Mathematical relationship between critical angle "C" and refractive index "n" is:

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N = C

N = 1 / sin c

N = 1 / cos c

N = 1 / sin2 c

The output of a NAND gate is 0 when

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Both of its inputs are 0

Both of its inputs are 1

any of its inputs is 0

any of its inputs is 1

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