find the power of a concave lens of focal lenght 2m
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Answered by
6
Answer:
f = 2
p = 1/f
= 1/2
= 0.5 D
Explanation:
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Answered by
1
Answer:
focal length is given =2m
power of lens p=1/f
p=1/-2(v shd always take it negative)
p=-0.5D
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