Question

What will be the angle of incidence when a ray of light passes through the centre of curvature of a concave mirror?​

Answer 1

Aɴsᴡᴇʀ:-

Tʜᴇ ʀᴀʏ ᴏғ ʟɪɢʜᴛ ғᴀʟʟs ɴᴏʀᴍᴀʟʟʏ ᴏɴ ᴀ ᴘʟᴀɴᴇ. Sᴏ ᴛʜᴇʀᴇғᴏʀᴇ ᴛʜᴇ ᴀɴɢʟᴇ ᴏғ ɪɴᴄɪᴅᴇɴᴄᴇ ᴡʜᴇɴ ᴀ ʀᴀʏ ᴏғ ʟɪɢʜᴛ ᴘᴀssᴇs ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ᴄᴇɴᴛʀᴇ ᴏғ ᴄᴜʀᴠᴀᴛᴜʀᴇ ᴏғ ᴄᴏɴᴄᴀᴠᴇ ᴍɪʀʀᴏʀ ɪs 0°.

Hᴏᴘᴇ ɪᴛs ʜᴇʟᴘs ᴜʜ~

Answer 2

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The ray of light passes through the centre of curvature of a concave mirror it strikes the mirror along the normal ray It incidences on to the mirror at an angle of 90 degrees.

Hence, the angle of reflection tends to zero degree, thus ray of light retraces its path.

@xXDivuXx⚡