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PHYSICS

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

Photometer
Microscope
Telescope
Spectrometer

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

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

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

Grey
Black
White
Blue

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Physics
Microphone is a device which transforms the

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

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

Ammeter
Thermocouple
Voltmeter
Hydrometer

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