Q: The following is the data for an image formed by a convex mirror : Object distance = 30 cm, Size of object = 10 cm, Size of image = 2.5 cm, The focal length of this mirror is _____.
A.
30 cm
B.
20 cm
C.
15 cm
D.
10 cm
Correct Answer:
Option D -
Explanations:
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