Answer:
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Explanation:
Answer:
0.061m
Explanation:
Given the following
image distance v = 0.080m
Object distance u = 0.25m
For concave mirror, the image distance is positive
Using the mirror formula;
1/f = 1/u + 1/v
1/f = 1/0.25 + 1/0.080
1/f = 4 + 12.5
1/f = 16.5
f = 1/16.5
f = 0.061m
Hence the focal length of the mirror is 0.061m
