Question

What is the focal length of plane mirror? ​

Answer 1

Answer:

$\infty$

Explanation:

the focal length of a plans mirror is infinite

Answer 2

ϙᴜᴇsᴛɪᴏɴ :-

ᴡʜᴀᴛ ɪs ᴛʜᴇ ғᴏᴄᴀʟ ʟᴇɴɢᴛʜ ᴏғ ᴘʟᴀɴᴇ ᴍɪʀʀᴏʀ? 

ᴀɴsᴡᴇʀ :-

ᴛʜᴇ ғᴏᴄᴀʟ ʟᴇɴɢᴛʜ ᴏғ ᴀ ᴘʟᴀɴᴇ ᴍɪʀʀᴏʀ ɪs ɪɴғɪɴɪᴛʏ ᴀs ᴛʜᴇ ɪᴍᴀɢᴇ ᴄᴀɴ ʙᴇ ғᴏʀᴍᴇᴅ ᴀᴛ ɪɴғɪɴɪᴛᴇ ᴅɪsᴛᴀɴᴄᴇ ɪɴsɪᴅᴇ ᴛʜᴇ ᴍɪʀʀᴏʀ.

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs...

ᴍᴀʀᴋ ᴍᴇ ᴀs ʙʀᴀɪɴʟɪᴇsᴛ ❤❤