why light does not disperse through a lens?

Asked by  | 8th Jul, 2009, 09:04: PM

Expert Answer:

The problem of dispersion do arise with lens. The solution to this problem is to combine a positive lens that has one index of refraction with a negative lens of a different type of glass and a different index of refraction, such that the dispersion of the two negate each other.

Answered by  | 10th Jul, 2009, 10:07: AM

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