find the power of concave lense of focal length 2m
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Answer:
The given focal length of the concave lens is f = -2 m. It is negative because a concave lens always has a negative focal length. The unit of power is dioptre (D) and 1D = 1m-1. Therefore, the correct answer for the given question is option (D).
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Answer:
the answer of this question is focal lenth is 2m
p=1/f=1/-2
=
Explanation:
1/-2
0=0.5D
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