Question

18 which wavelength corresponds to the highest energy photon? a 700 nm b 600 nm c 550 nm d 410 nm

Explanation:

Step1: Recall energy - wavelength relation

The energy of a photon is given by $E = \frac{hc}{\lambda}$, where $h$ is Planck's constant, $c$ is the speed of light, and $\lambda$ is the wavelength. Energy and wavelength are inversely proportional.

Step2: Analyze the options

The smaller the wavelength $\lambda$, the higher the energy $E$. Among 700 nm, 600 nm, 550 nm, and 410 nm, 410 nm is the smallest wavelength.

Answer:

D. 410 nm