Physics
Grade-10
Easy
Question
A normal incidence is when ____.
- The incident ray makes an angle of 40 degrees with the normal
- The incident ray goes perpendicular to the normal
- The incident ray goes along the normal
- All of the above
Hint:
The incident ray goes along the normal
The correct answer is: The incident ray goes along the normal
for normal incidence, the incident ray is along the normal itself.
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