The angle of incidence of a ray for which the angle of refraction is 90° is called ____?
کسی شعاع کے آپس کا زاویہ جس کے لیے اضطراب کا زاویہ °90 ہے ____ کہلاتا ہے؟
Answer: Critical Angle
Explanation
- The critical angle is the angle of incidence at which the angle of refraction is 90°, and beyond which total internal reflection occurs.
- This concept is crucial in understanding optical phenomena like fiber optics and prisms.
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