A horizontal ray of light is incident on the right-angled prism with prism angle $6^{\circ}$. If the…

A horizontal ray of light is incident on the right-angled prism with prism angle $6^{\circ}$. If the refractive index of the material of the prism is 1.5 , then the angle of emergence will be
  1. $4^{\circ}$
  2. $6^{\circ}$
  3. $9^{\circ}$
  4. $10^{\circ}$

Solution


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

Asked in: NEET 2023 (Manipur)

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