The human eye is sensitive to yellow-green light having a frequency of about 5.5 1014 Hz (a wavelength of about 550 nm). What is the energy in joules of the photons associated with this light?
E = hf
To calculate the energy of photons associated with yellow-green light, you can use the equation:
E = hf
where E is the energy of a photon, h is the Planck's constant (approximately 6.626 × 10^-34 J s), and f is the frequency of the light.
Given that the frequency of yellow-green light is 5.5 × 10^14 Hz, we can substitute these values into the equation:
E = (6.626 × 10^-34 J s) × (5.5 × 10^14 Hz)
Evaluating this expression gives the energy of a single photon associated with yellow-green light. Let's calculate it:
E = (6.626 × 10^-34 J s) × (5.5 × 10^14 Hz)
≈ 36.44 × 10^-34 J
Therefore, the energy of the photons associated with yellow-green light is approximately 36.44 × 10^-34 joules.