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Question

Which of the following light has the combination of all frequencies of visible light ?

A
white light
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B
black light
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C
ultraviolet light
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D
infrared light
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E
transparency
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Solution

The correct option is A white light
The visible light contains 7 colours : Violet, indigo, Blue, Green, Yellow, Orange and Red.
White colour is formed by the interference of all 7 colours, thus white light has the combination of all frequencies of visible light.

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