Tag: problems on prism

Questions Related to problems on prism

Multiple choice problems on prism prism ray optics and optical instruments optics physics

The refracting angle of a prism $60^{\mathrm{o}}$.The refractive index of the material of the prism is $\sqrt{\dfrac{7}{3}}$. The limiting angle of incidence of a ray that will be transmitted through the prism in this case will be :

  1. $30^{0}$
  2. $45^{\mathrm{o}}$
  3. $40^{\mathrm{o}}$
  4. $50^{\mathrm{o}}$
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A Correct answer
Explanation

The limiting angle of incidence is determined by the condition that the ray must be able to pass through the prism without undergoing total internal reflection at the second face.