A concave mirror is held in water what should be the change in focal length of the mirror
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it will become 3/4th of original
the focal length is inversely proportional to relative refractive index
refractive index of water is 4/3
hence ans is 3/4
if it's correct pls mark as brainliest
the focal length is inversely proportional to relative refractive index
refractive index of water is 4/3
hence ans is 3/4
if it's correct pls mark as brainliest
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