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Physics

Physics
Brightness of bulb depends on voltage or current?

Both A & B
Current
Voltage
None

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Physics
Who was the first scientist to discover Electrons?

J.C. Bose
Albert Einstein
J.J Thompson
Isaac Newton

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Physics
Choose the most appropriate answer: Sir CV Raman was awarded Noble Prize for his work connected with which of the following phenomenon of radiation?

Scattering
Diffraction
Interference
Polarization

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Physics
Where should a boat compass be mounted?

Near iron
All listed here
Away from electrical wiring
Near magnet

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Physics
Which of the following is the unit of perceived loudness of sound ?

Decibel
Phon
Hertz
Sone

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Physics
Wollen clothes keep the body warm because

Wool is a bad conductor
Wool absorbs radiant heat from outer objects
Wool increases the temperature of the body
Wool rejects heat from the outer objects

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