The energy of a photon of red (wavelength 6.626x10^-7 m) light is A) 3 J B) 3x10^-19 J C) 3x10^-20 Hz D) 6.626x10^-19 J

Question

Quizplus · Accepted Answer

The energy of a photon can be calculated using the equation E = hc/λ, where h is Planck's constant (6.626x10^-34 J·s), c is the speed of light (3x10^8 m/s), and λ is the wavelength of the light. Substituting the given values for red light (λ = 6.626x10^-7 m), the energy E is found to be approximately 3x10^-19 J, making option B correct.

The Energy of a Photon of Red (Wavelength 6