Answer:
A. 50 degree
B. 50 degree
C. 20 degree
Explanation:
- In the diagram the incident angle is 50 degree
- by law of reflection and by the diagram, angle of reflection is also 50 degree.
- by the diagram, angle of refraction is 20 degree.
What is angle of refraction?
The angle subtended by the refracted ray from the normal is called, angle of refraction.
Thus, angle of incidence is 50 degree, angle of reflection is also 50 degree, and angle of refraction is 20 degree.
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