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प्रश्न
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
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उत्तर
Focal length is the distance between pole (P) and focus (F)
(F) Focus is a point on principal axis where rays of light appear to meet.
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संबंधित प्रश्न
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front side of a shining steel spoon?
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How is the focal length of a spherical mirror related to its radius of curvature?
The radius of curvature of a convex mirror is 40 cm. Find its focal length.
Geometric centre of the spherical mirror is ______.
Define the radius of curvature.
