Two thin conves lenses of focal length 15 cm and 30 cm are placed in contact. What

+1 vote

asked Mar 30, 2019 in JEE by kratos

Two thin conves lenses of focal length 15 cm and 30 cm are placed in contact. What will be power of the combination?

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+2 votes

answered Apr 7, 2020 by kratos

Best answer

According to Question, Focal length of combination-

Power of the combination p = 100/10 =10 D