science
Grade-7
Easy

Question

Irregular reflection is not carried out when light falls on a ___ surface.

  1. Rough
  2. Smooth
  3. Slightly rough
  4. Extremely rough

hintHint:

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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