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A light of wavelength 5800Å incident on a glass slab and undergoes refraction. Calculate the speed, wavelength and frequency of the refracted light (Refractive index of glass is 3//2) |
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Answer» SOLUTION :Data SUPPLIED `lamda=5800Å=5800xx10^(-10)m, "" n_(ga)=3//2, n_(ga)=(c_(a))/(c_(g))` `:.c_(g)=(c_(a))/(n_(ga))=(3XX10^(8))/(3//2)=2xx10^(8)m//s` `lamda_(g)=(c_(g))/v=(c_(g))/(c_(a)//lamda_(a))=(lamda_(a).c_(g))/(c_(a)) [ :. c=vlamda]=(5800xx10^(-10)xx2xx10^(8))/(3xx10^(8))=3867xx10^(-10)=3867Å` `v=(c_(g))/(lamda_(g))=(c_(a))/(lamda_(a))=5.17xx10^(14)Hz` |
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