science
Grade-7
Easy
Question
Irregular reflection is not carried out when light falls on a ___ surface.
- Rough
- Smooth
- Slightly rough
- Extremely rough
Hint:
Irregular reflection occurs at rough surfaces.
The correct answer is: Smooth
- Regular reflection occurs at smooth surfaces.
- Therefore, irregular reflection will not occur at smooth surfaces.
- It occurs at rough surfaces.
- So, the correct option is b.
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