Q 1202423338.     A light wave of frequency `5 xx 10^14 ` Hz enters a medium of refractive index `1.5`. In the medium the velocity of the light wave is `......` and its wavelength is `...... `

JEE 1983
A

`2.0 xx 10^8` m/s, `6.0 xx 10^(-8)` m

B

`2.0 xx 10^8` m/s, `4.0 xx 10^(-7)` m

C

`4.0 xx 10^6` m/s, `4.0 xx 10^(-7)` m

D

`4.0 xx 10^6` m/s, `6.0 xx 10^(-8)` m

HINT

`v = c/μ `

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