Question:medium

What is the frequency of red light having wave length $750 \text{ nm}$ ?

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Shortcut: $\nu = \frac{3 \times 10^8}{\lambda (\text{in m})}$
Updated On: Jun 11, 2026
  • $3.0 \times 10^{14} \text{ Hz}$
  • $4.0 \times 10^{14} \text{ Hz}$
  • $7.5 \times 10^{14} \text{ Hz}$
  • $9.0 \times 10^{14} \text{ Hz}$
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The Correct Option is B

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