A 10 mm long pin is placed vertically infront of concave mirror.A 5 mm long image of pin is formed at 30cm the focal length is (i) -30 cm (l) -20 cm
(C) - 40 cm (d) -60 cm.
Answers
Answered by
0
Answer:
Explanation:
See the below photo which I made it . I wrote in another website . Mark as brainlist
Attachments:
Similar questions