TS EAMCET · Physics · Ray Optics
A thin prism of angle \(6^{\circ}\) made of glass of refractive index 1.5 is combined with another prism made of refractive index 1.75 to produce dispersion without deviation. Then, the angle of the second prism is
- A \(5^{\circ}\)
- B \(8^{\circ}\)
- C \(4^{\circ}\)
- D \(6^{\circ}\)
Answer & Solution
Correct Answer
(C) \(4^{\circ}\)
Step-by-step Solution
Detailed explanation
For dispersion without deviation Net deviation \(=0\) \( \delta-\delta^{\prime}=0 \Rightarrow A(\mu-1)-A^{\prime}\left(\mu^{\prime}-1\right)=0 \) where, \(\delta=\) deviation by first prism \(\delta^{\prime}=\) deviation by second prism \(A=\) angle of first prism \(=6^{\circ}\)…
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