Science
In the diagram given below, X and Y are the end colours of the spectrum of white light. The colour of 'Y' represents the

- Colour of the sky as seen from Earth during the day.
- Colour of the sky as seen from the moon.
- Colour used to paint the danger signals.
- Colour of sun at the time of noon.
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Answer
Colour used to paint the danger signals.
Reason — We can observe from the image that the Y colour has deviated the least. Hence, Y is red colour or the colour used to paint the danger signals.
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