WBJEE · Physics · Ray Optics
Figure shows the graph of angle of deviation \(\delta\) versus angle of incidence i for a light ray striking a prism. The prism angle is
- A \(30^{\circ}\)
- B \(45^{\circ}\)
- C \(60^{\circ}\)
- D \(75^{\circ}\)
Answer & Solution
Correct Answer
(B) \(45^{\circ}\)
Step-by-step Solution
Detailed explanation
\(\begin{aligned} & =i+e-A \\ & A=i+e-\delta \\ & =60+15-30 \\ & =75-30=45^{\circ}\end{aligned}\)
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