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if the focal of a convex lens is 20cm what is its power in dioptres

if the focal of a convex lens is 20cm what is its power in dioptres

Grade:12

7 Answers

sai kumar
51 Points
7 years ago
5D.
 
pa1
357 Points
7 years ago
5dp
ANJI BABU
53 Points
7 years ago
5 DIOPTERS
salvathshaik
164 Points
7 years ago
5 DIOPTERS
Mondo Camry
79 Points
7 years ago
it is 5 Diopters since power=1/f
Gowri sankar
292 Points
6 years ago
mr venky,
                It is 5 Diopters since power=1/f........
Prabhakar ch
577 Points
6 years ago
5D......

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