Question

define focal length of a convex mirror write the relationship between focal length and radius of curvature of a convex mirror​

Answer 1

Answer:

Focal length  is the distance between the center of a convex lens or a concave mirror and the focal point of the lens or mirror — the point where parallel rays of light meet, or converge.

The focal length (f) of a lens is the distance between the center of the lens and the point at which the reflected light, of a beam of light travelling parallel to the center line, meets the center line (principal axis). The radius of curvature (r) is the radius of the lens that forms a complete sphere.

Answer 2

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◼ Fᴏᴄᴀʟ Ꮮᴇɴɢᴛʜ

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◼ Ꭰᴇғɪɴɪᴛɪᴏɴ :-

⠀⠀⠀⠀⠀⠀⠀⠀⠀Focal Ꮮength is the distance between focus and centre of curvature of the convex mirror.

◼ Ꭱᴇʟᴀᴛɪᴏɴsʜɪᴘ Ᏼᴇᴛᴡᴇᴇɴ Fᴏᴄᴀʟ Ꮮᴇɴɢᴛʜ Ꭺɴᴅ Ꭱᴀᴅɪᴜs Ꮎғ Ꮯᴜʀᴠᴀᴛᴜʀᴇ

⠀⠀⠀⠀⠀⠀⠀⠀⠀Focal Ꮮength = 1/2 × Ꭱadius Ꮎf Ꮯurvature

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