When a ray of light enters from denser m

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Target Exam

CUET

Subject

Physics

Chapter

Ray Optics

Question:

When a ray of light enters from denser medium to rarer medium, its velocity is doubled. The critical angle for total internal reflection will be:

Options:

60°

45°

30°

90°

Correct Answer:

30°

Explanation:

The correct answer is Option (3) → 30°