In a direct vision spectroscope, one uses a flint and a crown glass prism combination to get zero mean deviation but a finite dispersion. Which of the following is an acceptable diagrammatic representation?
[C = crown, F = flint, V = violet, R = red]
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
θ = δ 1 ( ω 1 – ω 2 ) ω 1 > ω 2 so θ positive with respect to δ 1
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