![The radius of curvature of a mirror is 20cm the focal length is](https://www.gkseries.com/blog/wp-content/uploads/2022/05/The-radius-of-curvature-of-a-mirror-is-20cm-the-focal-length-is.png)
Q. The radius of curvature of a mirror is 20cm the focal length is
A. 20cm
B. 10cm
C. 40cm
D. 5cm
Answer: 10cm
A. 20cm
B. 10cm
C. 40cm
D. 5cm
Answer: 10cm
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