Derive mathematically the expression for K.E
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Answer:
Explanation:Aperture of a lens is the effective diameter of its light transmitting area. Therefore, the brightness i.e. the intensity of the image formed by a lens which depends on the amount of light passing through the lens will vary as the square of the aperture of the lens.
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Answer:
K.E=1/2mv²
Explanation:
m=mass of object
v=velocity of object, initially is zero
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