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ICSE Class 10 Physics Question 14 of 27

Solved 2023 Question Paper ICSE Class 10 Physics — Question 1

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Question 4(i)

The diagram below shows the ray OP travelling through an equilateral prism of a certain material.

(a) Calculate the value of i2, if the angle of deviation is 43°.

(b) What is the ray QS called?

The diagram shows the ray OP travelling through an equilateral prism of a certain material. Calculate the value of i2, if the angle of deviation is 43°. What is the ray QS called? ICSE 2023 Physics Solved Question Paper.
Answer

(a) Given,

angle of prism (A) = 60° for an equilateral prism.

angle of incidence (i1) = 65°

Angle of deviation (δ) = 43°

𝑒 = i2 = ?

From formula,

Angle of deviation (δ) = 𝑖 + 𝑒 − 𝐴

Substituting the values we get:

43 = 65 + i2 - 60°

i2 = 43 - 5 = 38°

Hence, i2 = 38°

(b) Emergent ray