If the radius of curvature of a spherical mirror is 40cm. What will be the focal length of the mirror?
1)10cm
2)20m
3)20cm
4)10m
Answers
Answered by
1
Explanation:
Explanation:Answer: The focal length of the given spherical mirror is 20cm.
Answered by
3
Answer:
Radius of curvature,
R = 40 cm
Radius of curvature of a spherical mirror
= > 2 x focal length(f)
=> R = 2f
=> f = R/2
=> f = 40/2
=> f = 20cm.
Hence, the focal length of the given spherical mirror is 20cm
Explanation:
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