Question:
2 A 20 cm thick planoconcave lens is placed on 32 a paper on
Last updated: 6/11/2023
2 A 20 cm thick planoconcave lens is placed on 32 a paper on which flower is drawn How far above its actual position does the flower appear to an observer looking down normally from top 1 10 cm 3 50 cm R 20cm Observer r 20cm air 2 15 cm 4 None of these TO