2. Questions Bank
  3. 8th Class
  4. Science
  5. Chemical Effects of Electric Current

8th Class Science Chemical Effects of Electric Current Question Bank Chemical Effects of Current and Light

  • question_answer
    ____ is used in a periscope for the reflection of light.

    A) Concave lens                 

    B) Convex lens

    C) Concave mirror  

    D) Plane mirror

    E) None of these

    Correct Answer: D

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