Question # 1

The rating of a fuse wire is always expressed in:

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ampere-hours

KWh

Volts

Amperes

The ratio of image height to object height is called:

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Linear magnification

Power

Refraction

Radius of curative

the motion in which the friction reduces the mechanical energy of the system as time passes and the amplitude of motion reduces is called:

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SHM

Random motion

Damped motion

Circulatory motion

Wave equation is defined as:

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f = Tλ

f = V λ

V = 2fλ

V = fλ

Power of electric heater is:

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1500W

4750W

100W

50W

Electroscope is used for detecting:

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Current

Charge

Voltage

Resistance

If a ray of light in glass is incident on an air surface at an angle greater than the critical angle, the ray will:

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Refract only

Reflect only

Partially refract and partially reflect

Diffract only

SI unit of electric potential is:

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watt

volt

coulomb

joule

The maximum displacement from mean position is called:

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Maximum height

Time period

Amplitude

Intervel

A current carrying conductor produces a field around it is called:

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Electric field

Magnetic field

Both a and b

None of these

The mirror whose inner surface is reflecting is called:

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Concave mirror

Convex mirror

Miroor

Lens

Which instrument is used to detect current:

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Galvanometer

Voltmeter

Ammeter

Electroscope

The lines will be in the form of concentric circles, if conductor is:

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Circular

Straight

Solenoid

None of these

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