Question

the calculator screen shows the approximate wavelength, in millimeters, of cyan light. 5e - 4 progress: 0/2

Explanation:

Step1: Interpret scientific - notation

The notation 5E - 4 means $5\times10^{-4}$.

Step2: Calculate the value

$5\times10^{-4}=\frac{5}{10^{4}}=\frac{5}{10000}=0.0005$.

Answer:

$0.0005$