Wavelength and frequency
2 marks · EasyA light wave travels at a speed of m/s and has a frequency of Hz. Calculate the wavelength of the light wave.
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5.0 \times 10^{-7} m (±5e-8)
Also accept: 500 nm
Common mistakes: incorrect use of equation; wrong unit
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Marking points
M1 · 1 mark · Correct substitution or rearrangement of the wave equation.
A1 · 1 mark · Correct final answer with unit ( m or 500 nm).
Worked solution
Substitute values: