Question # 1

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

Thermocouples convert:

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Heat energy into electrical energy

Heat energy into light energy

Heat energy into mechanical energy

Chemical energy into electrical energy

Formula for time period of spring mass system is represented by:

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T = 2π√m/k

T = 2π √k/m

T = 1/2π√k/m

T = 1/2π√m/k

Typographical errors in BASIC statements are:

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Runtime errors

Logical Errors

Syntax errors

Execution errros

Electron gun has an electrode called for controlling the flow of electrons in the beam:

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Plate

Grid

Screen

Filament

A positive electric charge:

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Attracts other positive charge

Repels other positive charge

Attracts a neutral charge

Repels a neutral chage

Time period is reciprocal of:

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Frequency

Cycle

Wavelength

Amplitude

During S.H.M acceleration of the body is maximum at:

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Mean position

Extreme positions

Between mean & Extereme

None of these

Power of lens is:

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q/p

1/q

1/p

1/f

If the change of current in a circuit induces a current in another circuit, this phenomena is known as:

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Self induction

Mutual induction

Electromagnetic induction

None mutual induction

earth wire is connected with those appliances whose casing is made of:

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metals

wood

glass

plastic

Which instrument measures the potential difference:

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Voltmeter

Barometer

Galvanometer

Ammeter

The waves in which particle of the medium vibrate parallel to the direction of waves are called

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Longitudinal waves

Transverse waves

Electromagnetic waves

both b and c

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