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    science
    Grade-7
    Easy

    Question

    What kind of surfaces produce a sharp image of an object placed in front of them?

    1. Smooth
    2. Polished
    3. Rough
    4. Both 1 and 2

    Hint:

    Smooth and polished surfaces

    The correct answer is: Both 1 and 2

      • Regular reflection produces sharp images.
      • Smooth and polished surfaces produces sharp image of an object.
      • So, the correct option is d.

      Diffused reflection occurs at rough surfaces.

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