Question 12 (Case Study) - (d) - CBSE Class 12 Sample Paper for 2022 Boards [Term 2] - Physics - Solutions to CBSE Sample Paper - Physics Class 12

Last updated at August 14, 2026 by

(d) A diamond is immersed in such a liquid which has its refractive index with respect to air as greater than the refractive index of water with respect to air. Then the critical angle of diamond-liquid interface as compared to critical angle of diamond -water interface willΒ 

(i) depend on the nature of the liquid onlyΒ 

(ii) decreaseΒ 

(iii) remain the sameΒ 

(iv) increase.Β Β 

Answer

[Term 2] A diamond is immersed in such a liquid which has refractive - CBSE Class 12 Sample Paper for 2022 Boards [Term 2] - Physics

part 2 - Question 12 (Case Study) - (d) - CBSE Class 12 Sample Paper for 2022 Boards [Term 2] - Physics - Solutions to CBSE Sample Paper - Physics Class 12 - Physics Class 12

Remove Ads
Teachoo Β· Class 12 Explore Class 12

Transcript

Question 12 (Choice 2) (d) A diamond is immersed in such a liquid which has its refractive index with respect to air as greater than the refractive index of water with respect to air. Then the critical angle of diamond-liquid interface as compared to critical angle of diamond -water interface will (i) 𝑛_1<𝑛_2 (ii) 𝑛_1=𝑛_2 (iii) 𝑛_1β‰ͺ𝑛_2 (iv)𝑛_1>𝑛_2 Given, πœ‡_π‘™π‘–π‘žπ‘’π‘–π‘‘ = πœ‡_π‘€π‘Žπ‘‘π‘’π‘Ÿ Critical angle of diamond with liquid 𝐢′=sin^(βˆ’1)β‘γ€–πœ‡_π‘™π‘–π‘žπ‘’π‘–π‘‘/πœ‡_π‘‘π‘–π‘Žπ‘šπ‘œπ‘›π‘‘ γ€— Critical angle of diamond with water 𝐢′=sin^(βˆ’1)β‘γ€–πœ‡_π‘€π‘Žπ‘‘π‘’π‘Ÿ/πœ‡_π‘‘π‘–π‘Žπ‘šπ‘œπ‘›π‘‘ γ€— sin⁑𝐢>sin⁑𝐢′ 𝐢>𝐢′ So the correct answer is (iv)

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.