Tamil Nadu State board (Class 10) › Optics › Question #8371
Single Choice Moderate

QThe ratio of the speed of light in a vacuum to its speed in a medium is called its:

ID: #8371 Optics 144 views
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#8371Q ID
ModerateDifficulty
OpticsTopic
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  • A Refractive index ✔ ✖
  • B Wavelength ✔ ✖
  • C Frequency ✔ ✖
  • D Amplitude ✔ ✖
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Answer: A) Refractive index

Explanation: Refractive index is defined as the ratio of the speed of light in a vacuum to its speed in a medium.

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