Question # 1

The S.I unit of Spring constant is:

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Nm

N

Nm-1

Ns

LDR can act as:

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Diode

Switch

Transistor

Rectifier

The product of frequency and wavelength is equal to:

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Time period

Amplitude

Wave speed

Wave energy

It is used in satellite communication:

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Radio waves

Micro waves

Light waves

Electrical waves

The resistance of voltmeter is:

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zero

low

Very high

10Ω

The maximum displacement from mean position is called:

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Maximum height

Time period

Amplitude

Intervel

Resistance of conductor is directly proportional to:

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Length

Pressure

Area

All of these

Value of ‘k’ depends upon:

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System of unit

Nature of medium

Both a and b

None of these

Which one is a safety device?

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Switch

Fuse

Circuit breaker

Both B and C

Who discovered the phenomenon of natural radioactivity?

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Henry Becurial

Merry Curi

Perry

Rutherford

A and B are the two inputs of a NOR gate. Its output would be 1 when:

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A = 1, B = 1

A = 0 , B = 1

A = 1, B = 0

A = 0 , B = 0

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

Hard disk is made of:

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Aluminium

Copper

Iron

Plastic

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10th Class Physics English Medium KPK Boards Online Mcqs MCQs With Answers

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