Q 17. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?
The less is convex because its focal length is positive and therefore is converging.
CBSE allows Class 10 students with basic math to study mathematics in 11th for 2025-26
CBSE announces post-result schedule for Class 10, 12 board exams 2025; apply for answer sheet from May 21
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