The visible spectrum includes light that ranges from about ________. a. \(400-700 \mathrm{nm}\) b. \(200-900 \mathrm{nm}\) c. \(20-20000 \mathrm{Hz}\) d. \(10-20 d B\)

Short Answer

Expert verified
The visible spectrum includes light that ranges from about \(400-700 \mathrm{nm}\).

Step by step solution

01

Understanding the Options

Look at the answer options provided. They fall into different units of measurement and represent different parts of the electromagnetic spectrum.
02

Identifying the Right Unit of Measurement

Remember, the range of the visible spectrum is usually measured in nanometers (nm). So, the options \(20-20000 \mathrm{Hz}\) and \(10-20 d B\) can be eliminated since they do not use the correct units.
03

Identifying the Right Range

The remaining options are \(400-700 \mathrm{nm}\) and \(200-900 \mathrm{nm}\). Recall that the visible spectrum is typically in the range of about \(400-700 \mathrm{nm}\). Thus, the correct answer is option a. \(400-700 \mathrm{nm}\)

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