Scelta multipla
Which of the following devices is commonly used to precisely measure the wavelength of light?
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9. Quantum Mechanics
Wavelength and Frequency
Scelta multipla
Which equation relates the energy of a photon to its frequency?
A
E = c /
u
B
E = m c^2
C
E = h
u
D
E = h /
u
Guida verificata passo dopo passo1
Recall that the energy of a photon is directly related to its frequency by a fundamental equation in quantum mechanics.
Identify the symbols: \(E\) represents the energy of the photon, \(h\) is Planck's constant, and \(\nu\) (nu) is the frequency of the photon.
The correct equation that relates energy and frequency is given by \(E = h \nu\), where energy increases linearly with frequency.
Other equations listed, such as \(E = \frac{c}{\nu}\) or \(E = \frac{h}{\nu}\), do not correctly represent the relationship between energy and frequency.
The famous equation \(E = mc^2\) relates energy to mass, not frequency, so it is not applicable here.
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