Question

The wavelength of visible light ranges from 650 nanometers to 850 nanometers, where 1 nm = 1 × 10^−7 cm. Express the range of wavelengths of visible light in centimeters.

Answer 1

So wavelength range of visible light will be
`=650* 10^(-7)=6.5* 10^(-5)cm` to
`=850* 10^(-7)=8.5* 10^(-5)cm`

Explanation:

We have given wavelength range of visible light is 650 nm to 850 nm

We have given that
`1nm=10^(-7)cm`

So for converting nm to cm to we have to multiply with
`10^(-7)`

So 650 nm
`=650* 10^(-7)=6.5* 10^(-5)cm`

And 850 nm
`=850* 10^(-7)=8.5* 10^(-5)cm`

So wavelength range of visible light will be
`=650* 10^(-7)=6.5* 10^(-5)cm` to
`=850* 10^(-7)=8.5* 10^(-5)cm`