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Chapter 5: Q21E (page 1106)

Light is incident along the normal on face AB of a glass prism of refractive index 1.52, as shown in Fig. E33.21. Find the largest value the angle鈭�can have without any light refracted out of the prism at face AC if (a) the prism is immersed in air and (b) the prism is immersed in water.

Short Answer

Expert verified
  1. The angle 鈭�, if the prism is immersed in air48.86掳
  2. The angle 鈭�, if the prism is immersed in water28.72掳

Step by step solution

01

Snell’s law

Snell's law determines the degree of refraction as well as the relationship between the angle of incidence, angle of refraction, and refractive indices of two media.

Here;

Critical Angle-Beyond which light rays traveling through a thicker media to the surface of a less dense medium are no longer refracted but completely reflected

Total Internal Reflection-When the angle of incidence surpasses the critical angle, a light ray reaches an interface with less dense material and is completely reflected.

02

If the prism is immersed in air

(b) Medium 1 is glass

Medium 2 is air

Hence, the angle 鈭�if the prism is immersed in water28.72掳

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Most popular questions from this chapter

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