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Friday, 9 October

JEE Main 2025 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 3 April 2025, Shift 2, Physics Q49

Question 49 of 75 in this shift, Physics question 24 of 25, Section B.

Light from a point source in air falls on a spherical glass surface (refractive index, μ=1.5\mu = 1.5 and radius of curvature = 50 cm). The image is formed at a distance of 200 cm from the glass surface inside the glass. The magnitude of distance of the light source from the glass surface is ___________ m.

Official answer

4

NTA final key.

Topic
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Idea tested
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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 42 of the 174 JEE Main shifts held from 2017 to 2026.