CBSE Class 10 Answered
The power of convex lens of focal length 20 cm is

Asked by varma.renu9481 | 17 Mar, 2023, 06:28: PM
The power of convex lens of focal length 20 cm is ______. [SSC class 10th Part I -2023]
(a) +5.0 D
(b) 0.20 D
(c) -5.0 D
(d) 0.5 D
Solution:
Given that,
Focal length, f = 20 cm = + 0.2 m
∵ for convex lens, the focal length is positive
Power of lens, P = 1/f
Answered by Jayesh Sah | 17 Mar, 2023, 07:03: PM
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