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Question 58 (Case Based MCQ) - Solutions - CBSE Class 10 Sample Paper for 2022 Boards - Science [MCQ] - Solutions to CBSE Sample Paper - Science Class 10

Last updated at Dec. 16, 2024 by Teachoo

She measured the angles of incidence for both the rays on the left side of the box to be 48.6 ° . She knew the refractive index of the material ‘X’ inside the box was 1.5. What will be the approximate value of angle of refraction? 

(A) 45 °  

(B) 40 °  

(C) 30 °  

(D) 60 ° (use the value: sin 48.6 ° ≈ 0.75) 

 

Answer - 

 

Transcript

Question 58 She measured the angles of incidence for both the rays on the left side of the box to be 48.6° . She knew the refractive index of the material ‘X’ inside the box was 1.5. What will be the approximate value of angle of refraction? (A) 45° (B) 40° (C) 30° (D) 60° (use the value: sin 48.6° ≈ 0.75) Given, Angle of incidence = i = 48.60 Angle of reflection = r = ? We know that Refractive index of any medium = sin⁡𝑖/sin⁡𝑟 1.5 = 𝐬𝐢𝐧⁡〖𝟒𝟖.𝟔〗/𝐬𝐢𝐧⁡𝒓 Putting sin 48.6° = 0.75 1.5 = 0.75/sin⁡𝑟 sin r = 0.75/1.5 sin r = (75/100)/(15/10) sin r = 75/100 × 10/15 sin r = 5/10 sin r = 𝟏/𝟐 Thus, r = 300 So, the correct answer is (C)
  1. Class 10
  2. Solutions to CBSE Sample Paper - Science Class 10

    3. Solutions - CBSE Class 10 Sample Paper for 2022 Boards - Science [MCQ]

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Solutions - CBSE Class 10 Sample Paper for 2022 Boards - Science [MCQ]

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CBSE Class 10 Sample Paper Science Solution - For 2024 Boards →
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Solutions to CBSE Sample Paper - Science Class 10

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CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo