science
Grade6
Easy
Question
The angle between the normal at a point of incidence and the reflecting surface is ____.
- > 90 degrees
- < 90 degrees
- = 90 degrees
- None of the above
Hint:
The angle between the normal at a point of incidence and the reflecting surface is equal to 90o.
The correct answer is: = 90 degrees
- The normal lies in between the incident ray and the reflected ray.
- The normal is perpendicular to the reflecting surface and starts from the point where the incident and reflecting rays meet.
- So the normal will be 90o at the point of incidence and reflection.
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