What is increasing order of the wave lengths of the following colours – McqOptions

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1.	What is increasing order of the wave lengths of the following colours -1. Orange2. Indigo3. Yellow4. Violet
A.	1, 2, 3, 4
B.	3, 4, 1, 2
C.	4, 3, 2, 1
D.	4, 2, 3, 1
Answer» E.

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