The focal lengths of a converging lens are fᵥ and fᵣ for violet and red lights, respectively. Which of the following is correct?

Options

(a) fᵥ (b) fᵥ = fᵣ
(c) fᵥ > fᵣ
(d) It depends on the average refractive index

Correct Answer:

fᵥ Explanation:

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