Question

If a magnefication of -1 is to be obtained by using a covering lens of focal length 12cm then, the object must be placed at.

help me friends.. ​

Answer 1

was it helpful

this question is very hard

my answer correct . mm

Answer 2

Answer:

Refer above attachment and So much sorry for Spamming..

Can I call you Bloom Unnie ?

I HOPE IT HELPS YOU UNNIE!