Scelta multipla
The wavelength of some violet light is 420.0 nm. What is the frequency of this violet light? (Speed of light, c = 3.00 × 10^8 m/s)
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9. Quantum Mechanics
Wavelength and Frequency
Scelta multipla
As the frequency of light increases, what happens to its wavelength?
A
The wavelength first increases, then decreases.
B
The wavelength decreases.
C
The wavelength increases.
D
The wavelength remains unchanged.
Guida verificata passo dopo passo1
Recall the fundamental relationship between the speed of light (\(c\)), frequency (\(f\)), and wavelength (\(\lambda\)), which is given by the equation: \(c = f \times \lambda\).
Understand that the speed of light (\(c\)) in a vacuum is a constant, approximately \(3.00 \times 10^{8}\) meters per second.
Since \(c\) is constant, if the frequency (\(f\)) of the light increases, the wavelength (\(\lambda\)) must adjust to keep the product \(f \times \lambda\) equal to \(c\).
Rearrange the equation to solve for wavelength: \(\lambda = \frac{c}{f}\).
From this equation, observe that as frequency (\(f\)) increases, the wavelength (\(\lambda\)) decreases, because they are inversely proportional.
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