JEE Mains · Physics · STD 12 - 9. Ray optics and optical instruments
The refractive index of prism is \(\mu=\sqrt{3}\) and the ratio of the angle of minimum deviation to the angle of prism is one. The value of angle of prism is _______ \(^\circ\).
- A \(60\)
- B \(70\)
- C \(75\)
- D \(80\)
Answer & Solution
Correct Answer
(A) \(60\)
Step-by-step Solution
Detailed explanation
\(\text { For } \delta_{\min }\) \(\mathrm{i}=\mathrm{e}\) \(\mathrm{r}_1=\mathrm{r}_2=\frac{\mathrm{A}}{2}\) \(\frac{\delta_{\min }}{\mathrm{A}}=1\) \(\frac{2 \mathrm{i}-\mathrm{A}}{\mathrm{A}}=1\) \(2 \mathrm{i}=2 \mathrm{~A}\) \(\mathrm{i}=\mathrm{A}\) Snell's law…
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