A wave of light having frequency 4 xx 10...

A wave of light having frequency `4 xx 10^(14)`Hz. And speed of light `3 xx 10^8` m/s enters glass of R.I. 1.5. Change in wavelength is

`2.5 x 10^(-7)` m

`2.5 xx 10^(-6)m`

`2.5 xx 10^(-8) m`

`2.5 xx 10^(-9)`

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