Problem $5$: $(\backslash (11\backslash \%\backslash )$ of Assignment Value$)$

The wavelengths of visible light range from $400$ to $700$ nm $.$

Part $($a$)$

What is the maximum frequency of visible light in hertz?

Part $($b$)$

What is the minimum frequency of visible light in hertz?

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$\backslash$left$.$f$\_\{\backslash$min $\}=\backslash$square$\backslash$right$]$

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