Question

which of the following statement is correct?
a) A convex lens of 5 dioptre power having focal length 0.20 m
b) A convex lens has -5 dioptre power having focal length 0.20 m
c) A concave lens has 5 dioptre power having focal length 0.20 m
d) A concave lens has -5 dioptre power having focal length 0.20 m​

Answer 1

Answer:

Option d

Explanation:

Answer 2

Answer:

Option D is the right answer

Plz mark upper one as brainlist plz