the focal length of a convex mirror is 20 CM. the power of the mirror is____D.
Answers
Answered by
1
Answer:
Let us consider R is a radius
And f is a focal length
As we know R=2f
Given f=20cm
Now R =2×20=40
Hence the answer is 40cm
Answered by
1
Answer:
we know that
The Focal length of convex mirror
is 20 cm
power of the mirror is 40
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