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Friday, 16 October

JEE Main 2026 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 6 April 2026, Shift 2, Physics Q50

Question 50 of 75 in this shift, Physics question 25 of 25, Section B.

A concave mirror of focal length 10 cm forms an image which is double the size of object when the object is placed at two different positions. The distance between the two positions of the object is __________ cm.

Official answer

10

NTA final key.

Chapter
Ray Optics and Optical Instruments
Topic
Spherical Mirrors
Idea tested
Mirror Formula Application

Same idea in other shifts

Asked 2× in all
  1. 7 Apr 2025, Shift 2 · Q40A mirror is used to produce an image with magnification of 14\frac{1}{4}. If the distance between object and its image is 40 cm, then the…MediumSingle correct

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.