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प्रश्न
The diagram below 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?
उत्तर
a. Using Prism formula,
∠A + ∠δ = ∠i1 + ∠i2
60° + 43° = 65° + Li2
∴ m∠i2 = 38°
b. Ray QS is called the emergent ray.
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