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JEE Main 7 April 2025, Shift 1, Physics Q50

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

A container contains a liquid with refractive index of 1.2 up to a height of 60 cm and another liquid having refractive index 1.6 is added to height H above first liquid. If viewed from above, the apparent shift in the position of bottom of container is 40 cm. The value of H is ________cm. (Consider liquids are immisible)

Official answer

NTA final key.

Chapter: Ray Optics and Optical Instruments
Topic: Refraction and Snell's Law
Idea tested: Apparent Depth of Immiscible Liquids

Same topic in other shifts

All Refraction and Snell's Law questions

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4 Apr 2025, Shift 2 · Q47If an optical medium possesses a relative permeability of $\frac{10}{\pi}$ and relative permittivity of $\frac{1}{0.0885}$ , then the…MediumNumerical value
7 Apr 2025, Shift 2 · Q41Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Refractive…EasyAssertion–reason
7 Apr 2025, Shift 2 · Q42A transparent block A having refractive index $\mu=1.25$ is surrounded by another medium of refractive index $\mu=1.0$ as shown in figure.…MediumSingle correctHas a figure
6 Apr 2024, Shift 2 · Q50In finding out refractive index of glass slab the following observations were made through travelling microscope 50 vernier scale division…HardSingle 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.