The speed of light in media M₁ and M2 is 1.5x10 8 m/s and 2.0x108 m/s respectively. A ray of light enters from medium M₁ to M₂ at an incidence angle i. If the ray suffers total internal reflection, the value of i is

Question:

The speed of light in media M₁ and M₂ is 1.5×10⁸ m/s and 2.0×10⁸ m/s respectively. A ray of light enters from medium M₁ to M₂ at an incidence angle i. If the ray suffers total internal reflection, the value of i is

Options :

(a) equal to sin-1(2/3)
(b) equal to or less than sin-1(3/5)
(c) equal to or greater than sin-1(3/4)
(d) less than sin-1(2/3)

Answer :

Answer Steps :

step 1

step 2

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