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Physics

Physics
Instrument used to measure the force and velocity of the wind is

Audiometer
Ammeter
Altimeter
Anemometer

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Physics
The audio signals of TV are

Unmodulated
Frequency modulated
Amplitude modulated
Velocity modulated

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Physics
Rectifiers are used to convert:

High voltage to low voltage
Alternating current to Direct current
Low voltage to high voltage
Direct current to Alternating current

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

Green
Yellow
Blue
Orange

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Physics
The term photon refers to

Radiation
Light ray
Sub atomic particle
None of these

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Physics
Solar energy is converted into chemical energy during

Transpiration
Osmosis
Diffusion
Photosynthesis

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