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Physics

Physics
In AC circuits, AC meters measure

Mean square values
Peak values
Rms values
Mean values

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Physics
Why the needle of iron swims on water surface when it is kept gently ?

Due to surface tension
The density of needle is less than that of water
It will remain under the water, when it will displace more water than its weight
Due to its shape

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Physics
Radio telescopes are better than optical telescopes because

All of these
they can detect faint galaxies which no optical telescope can
they can work during the day and night
they can work even in cloudy conditions

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Physics
Magnetic domains normally occur in

Silver
Copper
All of these
Iron

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Physics
The weakest of all fundamental forces is

Nuclear force
Electrostatic force
Magnetic force
Gravitational force

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Physics
Addition of suitable impurities into semiconductor, is called

Doping
Forming
Diluting
Mixing

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MORE MCQ ON Physics

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