A ray of monochormatic light is incident on one refracting face of a prism of angle 75^(@). It passes through the prism an is incident on the other at the critical angle. If the refractive index of the material of the prism is sqrt(2), the angle of the first face of the prism is

A ray of monochormatic light is incident on one refracting face of a p

1.	A ray of monochormatic light is incident on one refracting face of a prism of angle 75^(@). It passes through the prism an is incident on the other at the critical angle. If the refractive index of the material of the prism is sqrt(2), the angle of the first face of the prism is
Answer» `30^(@)` `45^(@)` `60^(@)` `0^(@)` ANSWER :B

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A ray of monochormatic light is incident on one refracting face of a prism of angle 75^(@). It passes through the prism an is incident on the other at the critical angle. If the refractive index of the material of the prism is sqrt(2), the angle of the first face of the prism is

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