## Wavelengths [ENDORSED]

$E=hv$

604805638
Posts: 19
Joined: Wed Sep 21, 2016 2:59 pm

### Wavelengths

When solving problems for wavelength should your final answer be in nanometers or meters?

Serena Patel 2H
Posts: 19
Joined: Wed Sep 21, 2016 2:59 pm

### Re: Wavelengths  [ENDORSED]

You should convert your answer to what was originally given in the question. However, if the question is also asking you to identify a specific type of light, you should convert to nanometers so the wavelength is easy to identify.

604805638
Posts: 19
Joined: Wed Sep 21, 2016 2:59 pm

### Re: Wavelengths

Thanks!

Diana_Visco_1l
Posts: 31
Joined: Fri Jul 15, 2016 3:00 am

### Re: Wavelengths

When solving problems for wavelength, yes its important to understand what the question's units contain, it's important to understand the SI unit system. When using the speed of light formula, and Broglie formula the standard SI unit is m. Thus, you must convert your wavelength (if given in nm) to m. Note: 1 m = 1 nm^-9