CBSE BOARD X, asked by sivagayathri6000, 11 months ago

please answer this ​

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Answers

Answered by durgasankarmaka
0

Answer:

350 kilometre per second

Answered by JayaBika
1

Answer:

2*10^8 m/sec

Explanation:

Speed of light in vacuum/ Speed of light in media = absolute refractive index

Let x be speed on light in media

=> (3*10^8 ) / x = 1.5

=> (3*10^8) / 1.5 = x

=> (2*10^8) = x

Hence speed of light in media is 2*10^8 m/sec

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