Question # 1

NOT gate is also called:

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Converter

Inverter

Transmitter

Receiver

The basic operations performed by a computer are:

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Arithmetic operations

Non-arithmetic operations

Logical operations

Both a and c

The electrostatic force acting on two charges each of 1 C separated by 1m is about .

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9 x 10⁹ N

9 x 10^-9N

9 x 10⁸N

9 x 10^-8N

Who discovered Electromagnetic induction?

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Michael Faraday

Flemiing

Ohm

Coulomb

One coulomb is equal to charge of ________ electrons.

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6.25 x 10^-19

6.25 x 10¹⁹

6.25 x 10¹⁸

6.25 x 10^-18

When a Uranium (92 protons)ejects a beta particle, how many protons are left in the remaining nucleus?

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89 Protons

90 Protons

91 Protons

93 Protons

The filament of an electric bulb is made of:

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Nickel

Aluminium

Tungsten

Carbon

Resistance of conductor is directly proportional to:

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Length

Pressure

Area

All of these

____________ is always virtual in case of convex mirror.

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p

image

object

all of these

Digital technology is used in:

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Bulb

Radar

Electric motor

All of these

The half of carbon 14 is

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5720 years

5730 years

5740 years

5750 years

A device which has two ways of communication is:

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television

radio

hard disk

mobile phone

The difference between the loudness of faintest audible sound and loudness of another sound is called:

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Pitch of sound

Quality of sound

Sound level

Intensity of sound

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