Chapter 19, Problem 54E

Interpretation Introduction

Interpretation: The wavelength range of light at which selenium is exposed is given. The color of the light that should be used to make selenium conductive is to be identified.

Concept introduction: The range of visible light is $400\text{nm}$ to $\text{750}\text{nm}$. It contains violet, blue, green, yellow, indigo, white and red color.

To determine: The color of the light that should be used to make selenium conductive.