When monocromatic orange light is used i

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Target Exam

CUET

Subject

Physics

Chapter

Ray Optics

Question:

When monocromatic orange light is used instead of violet light in a convex lens, its focal length will:

Options:

increase

remains the same

first decreases then increases

decrease

Correct Answer:

increase

Explanation:

The correct answer is Option (1) → increase $n^{2}$