the power of concave lens is .........
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1
Answer:
always negative
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0
Answer:
power of concave lens is
Step-by-step explanation:
POWER OF A LENS. The power of a lens is defined as the ability of the lens to converge or diverge a beam of light falling on it. ... The power of a convex lens is positive as a convex lens has a positive focal length, while the power of a concave lens is negative as concave lens has a negative focal length.
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