Physics
A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ .

Pressure difference due to fast moving air in between
Illusion of the man
The centripetal force
Gravitational force between train and man

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Physics
Energy in reflected light :

Increases with the increase in angle
Does not depends on the angle of incidence
Becomes maximum for angle of incidence equal to 45°
Decreases with the increase in angle of incidence

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