Question

Focal length of convex mirror whose radius of curvature is 32 cm

Answer 1

Answer:

we know focal length is half of radius of curvature

so,

focal = radius/2

focal = 32/2

focal = 16

Therefore focal length of convex mirror is 16 cm

Answer 2

ᴀs ᴡᴇ ᴋɴᴏᴡ ᴛʜᴀᴛ ᴛʜᴇ ғᴏᴄᴀʟ ʟᴇɴɢᴛʜ ᴏғ ᴀ sᴘʜᴇʀɪᴄᴀʟ ᴍɪʀʀᴏʀ ɪs ᴇϙᴜᴀʟ ᴛᴏ ʜᴀʟғ ᴛʜᴇ ʀᴀᴅɪᴜs ᴏғ ᴄᴜʀᴠᴀᴛᴜʀᴇ ᴏғ ᴛʜᴀᴛ ᴍɪʀʀᴏʀ.

ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ᴛʜᴇ ϙᴜᴇsᴛɪᴏɴ ᴛʜᴇ ʀᴀᴅɪᴜs ᴏғ ᴄᴜʀᴠᴀᴛᴜʀᴇ ᴏғ ᴀ ᴄᴏɴᴠᴇx ᴍɪʀʀᴏʀ ɪs 32 ᴄᴍ.

ᴀɴᴅ ʜᴇɴᴄᴇ, ᴛʜᴇ ғᴏᴄᴀʟ ʟᴇɴɢᴛʜ ᴡᴏᴜʟᴅ ʙᴇ :

=32÷2

=16 ᴄᴍ.

sᴏ, ᴛʜᴇ ғᴏᴄᴀʟ ʟᴇɴɢᴛʜ ᴏғ ᴛʜᴇ ᴄᴏɴᴠᴇx ᴍɪʀʀᴏʀ ɪs 16 ᴄᴍ.