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(a) + 5D
(d) – 2 D
(a) Thicker at the edge
(a) It is thicker in the middle
What is the power of a convex lens having focal length 20 cm?
(a) + 5D
(a) + 5D
See lessIf the focal length of a lens is – 0.50m, then what is its power?
(d) – 2 D
(d) – 2 D
See lessA concave lens is
(a) Thicker at the edge
(a) Thicker at the edge
See lessOne common way to identify a convex lens is
(a) It is thicker in the middle
(a) It is thicker in the middle
See less