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NEET 2023
Exam
NEET
Year
2023
Subject
Physics
Chapter
Ray Optics

NEET 2023 · Physics · Ray Optics

A horizontal ray of light is incident on the right-angled prism...

A horizontal ray of light is incident on the right-angled prism with prism angle 6∘6^{\circ}. If the refractive index of the material of the prism is 1.5 , then the angle of emergence will be A horizontal ray of light is incident on the right-angled prism with prism angle 6^ . If the refractive index of the

Options

  1. A4∘4^{\circ}
  2. B6∘6^{\circ}
  3. C9∘9^{\circ}
  4. D10∘10^{\circ}

Correct answer

C. 9∘9^{\circ}

Step-by-step solution

Deviation produced by a thin prism δ=(μ−1)A=(32−1)6∘=3∘\delta=(\mu-1) A=\left(\frac{3}{2}-1\right) 6^{\circ}=3^{\circ} Angle of  emergence =e=6∘+3∘=9∘\begin{aligned} \text{ Angle\text{ of } emergence }=e & =6^{\circ}+3^{\circ} \\ & =9^{\circ}\end{aligned}$$
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