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Visible spectrum contains light of following colours ''Violet - Indigo - Blue - Green - Yellow - Orange - Red'' (VIBGYOR).
Its frequency ranges from violet `(7.5xx10^(14) Hz)` to re `(4xx10^(14) Hz.)` Find out the maximum wavelength `("in" "Å")` in this range.

A

400 Å

B

750 Å

C

4000 Å

D

7500 Å

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