Calculate the energy of the green light emitted, per photon, by a mercury lamp with a frequency of 5.49 × 10¹⁴ Hz.

Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (nm), where 1nm = 10⁻⁹ m. What is the energy of a photon of the X-rays?

Calculate the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm.

A bright violet line occurs at 435.8 nm in the emission spectrum of mercury vapor. what amount of energy, in joules, must be released by an electron in a mercury atom to produce a photon of this light?

Calculate the energy of the orange light emitted, per photon, by a neon sign with a frequency of 4.89 × 10¹⁴ Hz.