Physics
The refractive index of a transparent medium is maximum for

Green light
Yellow light
Violet light
Red light

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Physics
In a conductor

There is no conduction band
The valence band and the conduction band overlap each other
The forbidden energy gap is very wide
The forbidden energy gap is very narrow

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Physics
A man standing at the top of a tower has two spheres A and B. He drops sphere A downwards and throws sphere B horizontally at the same time. Which of the following is correct ?

B will reach the ground first.
Both the spheres will reach the ground simultaneously.
A will reach the ground first.
The question is incomplete because the masses of the spheres are not given.

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