Verified Solution • 2025–26 Session moderate

QJEEM22Phb019: JEE Main 2022 Physics - Class 12 JEEM22Phb019 Solution: The difference of speed of light in the two media A and B (v A…

The difference of speed of light in the two media A and B (vA − vB) is 2.6 × 107 m/s. If the refractive index of medium B is 1.47, then the ratio of refractive index of medium B to medium A is : (Given : speed of light in vacuum c = 3 × 108 ms−1)

Multiple Choice Options

  • A 1.303
  • B 1.318
  • C 1.13
  • D 0.12

Step-by-Step Verified Solution

Speed of light in a medium =cn

⇒ According to given information,

cnA−cnB=2.6×107

⇒nBnA−1=2.6×1073×108×nB

⇒nBnA≃1.13

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