Question

अपवर्तनांक किस कहतह?
12 एक उत्तल लेंस की फोकस दूरी 40 से.मी. हैं ।लेंस की क्षमता की गणना कीजिए। 3
अथवा​

Answer 1

Answer:

ok sir please find the attached document for mike choose to you and your family and friends and parts for mike is not coming up at a new job and your voice on this group send 4 litre engine is a tea and I would love