Question # 1

The distance between two consecutive troughs or crests is called:

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wavelength

Frequency

Time period

None of these

Which device has two coils, primary and secondary?

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D.C. Motor

Transformer

A.C. genrator

a and b

which can be used to distinguish between insulators and conductors:

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electricity

telescope

temperature

electroscope

The parts of computer which can be seen and touched are called:

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Hardware

Software

Modem

CPU

The unit of spring constnat is:

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m

kg

Nm²

Nm^-1

NOT gate is also called:

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Converter

Inverter

Transmitter

Receiver

At extreme position potential energy of the pendulum is

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Maximum

Miimum

a and b

zero

battery is one of the source of:

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heat

light

current

sound

A capacitor stores 0.24 coulombs at 10 volts. It capacitance is:

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0.024F

0.12F

0.6F

0.8F

Example of mechanical waves is:

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Radio waves

X-rays

Light waves

Sound waves

A dielectric must be:

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Resistor

Insulator

Good conductor

Semi conductor

CD which is made of soft material is called:

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Hard disk

Floppy disk

Iron disk

Copper disk

The phenomena used in capacitor is:

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electrostatic induction

induced current

electric field

electroscope

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