Chapter 6, Problem 131AP

Interpretation Introduction

Interpretation:

The total energy (in J) absorbed by the person exposed to UV light is to be determined.

Concept introduction:

The energy of a photon can be expressed as follows:

$\text{E}=\frac{\text{hc}}{\lambda }$

Here, E denotes the energy of photon, $\text{h}$ denotes Planck’s constant $\left(6.63\times {10}^{-34}\text{ J}\cdot \text{s}\right)$, $\text{c}$ denotes the speed of light $\left(3.0\times {10}^8\text{ m/s}\right)$, and $\lambda$ denotes the wavelength.

Conversion of meter to centimeter is $\frac{1.00\times {10}^2\text{cm}}{1.00\text{ m}}$.

Conversion of meter to nanometer is $\frac{1.00\text{ nm}}{1.00\times {10}^{-9}\text{ m}}$.

$\text{2}.\text{5 h}$ is equal to 9000 s.