If the frequency of a light wave is 5 × 10^14 Hz and its speed in a medium is 2 × 10^8 m/s, its wavelength is
Options
- A. 4 × 10^-7 m
- B. 2.5 × 10^-7 m
- C. 1 × 10^-6 m
- D. 2.5 × 10^-6 m
- E. None of the above
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Correct Answer (Detailed Explanation is Below)
B. 2.5 × 10^-7 m
Detailed Explanation
Using λ = v/f, λ = (2 × 10^8)/(5 × 10^14) = 4 × 10^-7 m.
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