Final answer:
The energy of a photon with a wavelength of 965 nm is approximately 2.06 × 10^-19 J.
Step-by-step explanation:
To calculate the energy of a photon with a specific wavelength, you can use the formula E = hc/λ, where h is Planck's constant (6.626 × 10^-34 J × s), c is the speed of light (3.00 × 10^8 m/s), and λ is the wavelength in meters. Converting the given wavelength of 965 nm to meters (1 nm = 1 × 10^-9 m), we get 965 × 10^-9 m. Plugging these values into the formula, we have E = (6.626 × 10^-34 J × s)(3.00 × 10^8 m/s)/(965 × 10^-9 m). Calculating this expression gives us approximately 2.06 × 10^-19 J.