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1. What is called a spherical mirror?
Spherical mirrors are one form of . If the is a part of a , then it is called a ‘spherical mirror’.
2. The radius of curvature of a spherical mirror is 25 cm. Find its focal length.
The focal length is radius of curvature.
Substitute the value,
Focal length \(=\) \(cm\)
3. If two plane mirrors are inclined to each other at an angle of \(45°\), find the number of images formed.
The formula to calculate the number of images formed,
Substitute the values,
\(Number\ of\ images\ formed\ =\)
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