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3 Apr 2008 23:17:56 IST

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why does light with less wavelength deviate more than light with more wavelength in prism.

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why does light with less wavelength deviate more than light with more wavelength in prism.

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ramyani chakrabarty

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3 Apr 2008 23:21:57 IST

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deviation depends upon the refraction index, which further is depend upon wavelength ray. Thus deviation is different for rays of different wavelengths.

= A + B / (lamda) ² + ..

suresan

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4 Apr 2008 11:55:35 IST

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deviation d = (mu - 1)A
mu = A + b/(lamda)^2

Sharanaprasad

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21 Apr 2008 19:05:13 IST

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You know that relation d

from above relation it is clear that angle of deviation increases with decrease in wavelength

n = wavelenght of light in air / wavelength of light in medium

Frequency same in both medium then wavelength of medium decreases then the ratio of n increases then the relation

deviation = A(n-1) where A = angle of prism, n is Refractive Index

then deviation is directly propotional to the n hence deviation increases when wavelength decreases.

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