Question # 1

1 MB =

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1022KB

1023KB

1024KB

1025KB

AND gate can be formed by using two:

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NOT gates

OR gates

NOR gates

Nand gates

The phenomenon in which radiations convert the matter into positive and negative ions is called:

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Radio activity

Excitation

Ionization

Electrolysis

A positive electric charge:

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Attracts other positive charge

Repels other positive charge

Attracts a neutral charge

Repels a neutral chage

Which of the following is an example of simple harmonic motion:

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Motion of a simple pendulum

The motion of ceiling fan

The spinning of the earth on its axis

A bouncing ball on a floor

When 1 tonne of coal is burnt then amount of energy is released .

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36 x 10⁸ J

36 x 10⁹J

36 J

36 x 10¹⁰J

The waves in which particles of the medium vibrate perpendicular to the direction of waves are:

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Electromagnetic waves

Sound waves

Both a and b

Transverse waves

The S.I unit of electric potential is:

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Watt

Joule

Coulomb

Volt

the phenomena which is used in applying paints on the surface of different articles is called:

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electroplating

electroscope

electrostatic induction

electrolytes

In there is no extension in the spring then this positon is called

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Equilibrium position

Unequilibrium

Nautral equilibrium

Stable equilibrium

Public address system is the example of :

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Analogue electronics

Digital electonics

Binary system

None of these

Image formed on a camera is:

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real,invertred, and diminished

virtual, upright and diminshed

virtual, upright and magnified

real, inverted and magnified

A positive electric charge:

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Attracts other positive charge

Repels other positive charge

Attracts a neutral particle

Repels a neutral particle

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