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PHYSICS

Physics
Which one of the following instruments is used to study dispersion of light ?

Microscope
Spectrometer
Photometer
Telescope

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Physics
Which one of the following is responsible for the working of Newton's colour disc experiment ?

Formation of pure spectra
Principle of complementary colour
Persistence of vision
Formation of impure spectra

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Physics
An object which absorbs all colours and reflects none appears:

White
Black
Blue
Grey

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Physics
Microphone is a device which transforms the

Light signal into sound signal
Sound signal into current signal
Current signal into sound signal
Sound signal into light signal

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Physics
Conversion of heat into electrical energy is achieved by using :

Hydrometer
Thermocouple
Ammeter
Voltmeter

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