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    The colour picture tube is composed of three sets of individual phosphor dots that glow in three colours. Which are the three colours?
    Question

    The colour picture tube is composed of three sets of individual phosphor dots that glow in three colours. Which are the three colours?

    A.

    Green, blue, yellow

    B.

    Orange, blue, red

    C.

    Red, yellow, green

    D.

    Red, green, blue

    Correct option is D

    Red, green, blue

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