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10th Class Science Sources of Energy Question Bank Sources of Energy

  • question_answer
    Which of the following, when used in a solar cooker can increase its efficiency?

    A) Plane mirror     

    B) Convex mirror 

    C) Convex lens     

    D) Concave lens

    Correct Answer: A

    Solution :

    A plane mirror is used as a reflector in a solar cooker to increase the area over which the solar energy is focussed.


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