Q33 / 160 · AP EAMCET 2011 · Chemistry

Which one of the following frequencies of radiation (in $\mathrm{Hz}$ ) has a wavelength of $600 \mathrm{~nm} ?$

  • A
    $2.0 \times 10^{13}$
  • B
    $5.0 \times 10^{16}$
  • C
    $2.0 \times 10^{14}$
  • Correct answer
    D
    $5.0 \times 10^{14}$

Solution

$\begin{aligned} v & =\frac{c}{\lambda} \\ & =\frac{3 \times 10^8}{600 \times 10^{-9}} \\ v & =5 \times 10^{14} \mathrm{~Hz}\end{aligned}$

Hence, the correct answer is option: 'D'.

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