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Physics

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

Green
Blue
Yellow
Orange

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Physics
The substance which conducts current in the solid state is

Diamond
Iodine
Sodium chloride
Graphite

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Physics
The moment of inertia of a body does not depend upon its

Angular velocity
Form of mass
Distribution of mass
Axis of rotation

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Physics
What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space?

18 km/sec
21 km/sec
11.2 km/sec
35 km/sec

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Physics
Light travels at the fastest speed in:

water
vacuum
glass
hydrogen

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Physics
Radian is used to measure

Solid Angle
Intensity of Flame
Temperature
Angle

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