Question

What is the ratio of the wavelength of a photon?

• A. \( \lambda = \frac{h}{m v} \)
• B. \( \lambda = \frac{c}{f} \)
• C. \( \lambda = \frac{E}{h} \)
• D. \( \lambda = \frac{h}{E} \)

Hint:

For any photon, use the relation \( \lambda = \frac{c}{f} \) to calculate its wavelength, where \( c \) is the speed of light and \( f \) is the frequency of the photon.

Answer 1

The Correct Option is B

The wavelength of a photon can be related to its frequency using the equation: \[ \lambda = \frac{c}{f} \] where: - \( \lambda \) is the wavelength of the photon, - \( c \) is the speed of light in a vacuum (\( 3 \times 10^8 \, \text{m/s} \)), - \( f \) is the frequency of the photon. This is the general relation for the wavelength of any electromagnetic radiation, including photons.