Chapter 16, Problem 51A

To determine

The wavelength of red light in meters.

Answer to Problem 51A

  $7\times {10}^{-7}\text{m}$

Explanation of Solution

Given:

The wavelength of red light, $\lambda =700\text{nm}$

Formula used:

  $1{\text{nm = 10}}^{-9}\text{m}$

Calculation:

Then, the wavelength of red light in meters will be,

  $\begin{array}{c}\lambda =700\text{nm}\times \frac{{10}^{-9}\text{m}}{1\text{nm}}\\ =7\times {10}^{-7}\text{m}\end{array}$

Conclusion:

Hence, the wavelength of red light in meters is $7\times {10}^{-7}\text{m}$ .