Question

Which is the longest wavelength wave?​

Answer 1

Answer:

Red.

Explanation:

Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light. Ultraviolet (UV) light—is radiation with a wavelength shorter than that of visible light, but longer than X-rays, in the range 10 nm to 400.

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Answer 2

Red is the longest wavelenght wave