science
Grade-7
Easy
Question
During normal incidence on multiple mediums placed one after the other, the angle of incidence = angle of refractions = angle of emergence = ___ degrees.
Hint:
The angle between incident ray and the normal is zero degree in case of normal incidence.
The correct answer is: 0
- 0 degree.
- In normal incidence, the incident ray is perpendicular to the surface of separating therefore, the normal and the incident ray lie on the same line and the angle between them is of 0 degree.
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