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The speed of light in media $M_{1}$ and $M_{2}$ is $1.5 x 10^{8} m / s$ and $2 x 10^{8} m / s$ respectively. A ray of light enters from medium $M_{1}$ to $M_{2}$ at an incidence angle i. If the ray suffers total internal reflection, the value of i is :

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equal to or less than Sin-1 35

equal to or greater thanSin-134

less than Sin-123

equal to Sin-123

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detailed solution

Correct option is B

Sin C =μrarerμdenser= VdenserVrarer as V∞1μ Sin C= 1.52=34 i≥C

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The speed of light in media M1 and M2 is 1.5x108m/s and 2x 108m/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 :

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Ready to Test Your Skills?

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The speed of light in media $M_{1}$ and $M_{2}$ is $1.5 x 10^{8} m / s$ and $2 x 10^{8} m / s$ respectively. A ray of light enters from medium $M_{1}$ to $M_{2}$ at an incidence angle i. If the ray suffers total internal reflection, the value of i is :