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    Question

    The working principle of a 'Washing machine' is :

    A centrifugation Correct Answer Incorrect Answer
    B dialysis Correct Answer Incorrect Answer
    C reverse osmosis Correct Answer Incorrect Answer
    D diffusion Correct Answer Incorrect Answer

    Solution

    The principle behind the spinning dry of the clothes in a washing machine is centrifugal force. The fast spinning around of the clothes in the drum creates a large centrifical force from center to the edge of the drum, and the wet clothes are flung outwards to the drum edge and the water escapes through the drum holes.

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