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Light waves of 5895 Å wavelength travels...

Light waves of `5895 Å` wavelength travels from vaccum to medium of refractive index of`1.5`.Velocity of light and wavelength In medium will be
`(1) 2xx10^(8)m//sec,3330Å ,(2) 3xx10^(8)m//sec,3930Å`
`2xx10^(8)m//sec,3390Å `,(4) None

Text Solution

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(2) if velocity of light in vaccum is `c`then velocity of light in medium is
`v=(c )/(n)=(3xx10^(8))/(1.5)=2xx10^(8)m//sec`
wavelength of light in medium is
`lambda_(w)=(lambda)/(n)=(5895)/(1.5)=3930A^(0)`
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