JEE Main 13 April 2023, Shift 2, Physics Q59

Question 59 of 90 in this shift, Physics question 29 of 30, Section B.

A bi convex lens of focal length 10 cm is cut in two identical parts along a plane perpendicular to the principal axis. The power of each lens after cut is ______ D.

Official answer

NTA final key.

Chapter: Ray Optics and Optical Instruments
Topic: Lens Maker's Formula
Idea tested: Cutting a Thin Lens

Same idea in other shifts

Asked 2× in all

27 Jun 2022, Shift 2 · Q46A convex lens has power P. It is cut into two halves along its principal axis. Further one piece (out of the two halves) is cut into two…MediumSingle correctHas a figure

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.