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    An example of projected teaching aid is
    Question

    An example of projected teaching aid is

    A.

    Bulletin board

    B.

    Overhead projector

    C.

    Chart

    D.

    Model

    Correct option is B

    overhead projector is a device that projects an enlarged image of an acetate or other transparency placed on it on to a wall or screen by means of an overhead mirror.

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