QJEEM22Phbf89: JEE Main 2022 Physics - Class 12 JEEM22Phbf89 Solution: Light travels in two media M 1 and M 2 with speeds 1.5 × 10 8…

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QJEEM22Phbf89: JEE Main 2022 Physics - Class 12 JEEM22Phbf89 Solution: Light travels in two media M 1 and M 2 with speeds 1.5 × 10 8…

Light travels in two media $M_{1}$ and $M_{2}$ with speeds $1.5 \times 10^{8} {ms}^{- 1}$ and $2.0 \times 10^{8} {ms}^{- 1}$ respectively. The critical angle between them is :

Multiple Choice Options

A tan−1⁡(37)
B tan−1⁡(23)
C cos−1⁡(34)
D sin−1⁡(23)

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Accepted Answer

Critical angle between them

$\sin i_{c} = \frac{μ_{2}}{μ_{1}} = \frac{v_{1}}{v_{2}}$

$\sin i_{c} = \frac{3}{4}$

$\Rightarrow \tan i_{c} = \frac{3}{\sqrt{7}}$

$i_{c} = \tan^{- 1} \frac{3}{\sqrt{7}}$

QJEEM22Phbf89: JEE Main 2022 Physics - Class 12 JEEM22Phbf89 Solution: Light travels in two media M 1 and M 2 with speeds 1.5 × 10 8…

Multiple Choice Options

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