Student Login

Home›Chapters›Ray Optics PYQs›Refraction, Glass Slab & Apparent Depth›Question 35

MHT CET 2023 (12 May, Shift 2) · Refraction, Glass Slab & Apparent Depth

Refraction, Glass Slab & Apparent Depth question from MHT CET 2023 (12 May, Shift 2)

Q35MHT CET 2023 · 12 MAY · SHIFT 2Medium

Refraction, Glass Slab & Apparent Depth

An ink mark is made on a piece of paper on which a glass slab of thickness ' $t$ ' is placed. The ink mark appears to be raised up through a distance ' $x$ ' when viewed at nearly normal incidence. If the refractive index of the material of glass slab is ' $\mu$ ' then the thickness of glass slab is given by

Show answer and solution

Answer: (a)

Normal shift: $x = t\left(1 - \dfrac{1}{\mu}\right) = t\,\dfrac{\mu - 1}{\mu}$ .
$t = \dfrac{\mu x}{\mu - 1}$ .
So the answer is (a).

Report a mistake

More questions on Refraction, Glass Slab & Apparent Depth

A transparent glass cube of length 24 cm has a small air bubble trapped inside. When seen…MHT CET 2023 (9 May, Shift 2)
A vessel of depth ' d ' is half filled with oil of refractive index n₁ and the other half…JEE Main 2023 (13 Apr, Shift 1)
An ice cube has a bubble inside. When viewed from one side the apparent distance of the…JEE Main 2023 (12 Apr, Shift 1)
A microscope is focused on an object at the bottom of a bucket. If liquid with refractive…JEE Main 2023 (31 Jan, Shift 2)
A fish rising vertically upward with a uniform velocity of 8 ms⁻¹, observes that a bird…JEE Main 2023 (13 Apr, Shift 1)
A pole is vertically submerged in swimming pool, such that it gives a length of shadow…JEE Main 2023 (6 Apr, Shift 1)
If a ray of light in denser medium strikes a rarer medium at angle of incidence i, the…MHT CET 2023 (9 May, Shift 2)
As shown in the figure, a plane mirror is fixed at a height of 50 cm from the bottom of…JEE Main 2023 (11 Apr, Shift 2)