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Physics

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

Blue
Orange
Green
Yellow

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Physics
Which of the following is preferred for accelerating electrons?

Cyclotron
Synchrotron
Betatron
Van de Graft Generator

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Physics
The slope of a velocity-time graph represents

Displacement
Acceleration
Distance
Speed

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Physics
What is the fundamental unit of amount of a substance?

Candela
Meter
Mole
Kelvin

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Physics
Tap water is placed in an open pad and allowed to evaporate. After some time the temperature of water

Decreases slightly
Increases to a great extent
Increases slightly
Decreases rapidly

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Physics
Which one among the following is not an electromagnetic wave?

Infrared Ray
Cathode Ray
X-Ray
R-Ray

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