Question

Calculate the angle of incidence of a ray if the reflected ray is at an angle of 90° to the Incident ray?

Answer 1

Answer:

Calculate the angle of incidence of a ray if the reflected ray is at an angle of 90° to the Incident ray

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एक किरण की घटना के कोण की गणना करता है, तो परावर्तित किरण आपतित किरण के 90 के कोण पर है

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To factor in this 20 degrees properly, we take the mid-point (normal), which would, from the surface, make the incident angle 90 degrees, and deduct 20 degrees from there. So, 90 - 20 = 70 degrees. 70 degrees is the incident ray angle, and therefore so would be the reflective ray.

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