Question

Which of the following statements is true about Planck's Law?

The frequency of the emitted light is inversely proportional to the energy given off by the electrons.

The frequency of the emitted light is directly proportional to the energy given off by the electrons.

The wavelength of the emitted light is directly proportional to the energy given off by the electrons.

The wavelength of the emitted light is inversely proportional to the energy given off by the electrons.

Answer 1

the energy of a photon (E) is proportional to its frequency (ν).

the most correct answer will be the second option, but, since frequency is equal to c/wavelength, the last option can be partially correct.


The Planck–Einstein relation[1][2] is also referred to as the Einstein relation,[1][3][4] Planck's energy–frequency relation,[5] the Planck relation,[6] and the Planck equation.[7] Also the eponym 'Planck formula'[8] belongs on this list, but also often refers instead to Planck's law[9][10] These various eponyms are far from standard; they are used only sporadically, neither regularly nor very widely. They refer to a formula integral to quantum mechanics, which states that the energy of a photon (E) is proportional to its frequency (ν).

https://en.wikipedia.org/wiki/Planck%E2%80%93Einstein_relation

https://en.wikipedia.org/wiki/Planck_constant

Answer 2

i agree @Cuanchi