Question

ᴀɴ ᴏʙᴊᴇᴄᴛ ɪs ᴋᴇᴘᴛ ᴀᴛ ᴄᴍ ғʀᴏᴍ ᴀ ᴄᴏɴᴄᴀᴠᴇ ᴍɪʀʀᴏʀ ᴏғ ғᴏᴄᴀʟ ʟᴇɴɢᴛʜ ᴄᴍ. ғɪɴᴅ ᴛʜᴇ ɪᴍᴀɢᴇ ᴅɪsᴛᴀɴᴄᴇ ᴀɴᴅ ᴍᴀɢɴɪғɪᴄᴀᴛɪᴏɴ ᴘʀᴏᴅᴜᴄᴇᴅ ʙʏ ᴛʜᴇ ᴍɪʀʀᴏʀ.

Answer 1

Answer:

Image distance=-30cm

Explanation:

$\sf{{\dfrac{1}{f}}={\dfrac{1}{v}}+{\dfrac{1}{u}}}$

$\sf{{\dfrac{1}{v}}=-{\dfrac{1}{15}}+{\dfrac{1}{30}}}$

$\sf{{\dfrac{1}{v}}={\dfrac{-2+1}{30}}}$

$\sf{{\dfrac{1}{v}}=-{\dfrac{1}{30}}}$

$\sf{v=-30cm}$

Magnification:

$\sf{m=}{\dfrac{-v}{u}}$

$\sf{m=}{\dfrac{30}{-30}}$