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Physics

Physics
Which of the following is a good conductor of heat but a bad conductor of electricity ?

Mica
Celluloid
Asbestos
Rubber

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Physics
Which of the following represents a relation for ''heat lost = heat gained'?

Principle of vaporization
Principle of calorimetry
Principle of thermal equilibrium
Principle of colors

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Physics
Who gave the Theory of Relativity?

Galileo Galilei
Archimedes
Isaac Newton
Albert Einstein

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Physics
Frictional force acts in

All the directions
Upward direction
The opposite direction of the motion
The same direction as the motion

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Physics
Suitable impurities are added to a semiconductor depending on its use. This is done in order to

increase its electrical conductivity
enable it to withstand higher voltages
increase its life
increase its electrical resistivity

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Physics
Which one of the following wavelengths of light is most effective in photosynthesis ?

Yellow
Orange
Blue
Green

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MORE MCQ ON Physics

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