## Question 9; 6th edition

$E=hv$

VGonzalez
Posts: 30
Joined: Fri Sep 28, 2018 12:18 am

### Question 9; 6th edition

Not sure if I am posting in the right section, but what are the standard units for frequency and wavelength given by the equations. The chart has a wavelength in nanometers and Dr. Lavelle did an example on Wednesday also with nanometers but I thought meters was standard.

Kyle Golden Dis 2G
Posts: 67
Joined: Fri Sep 28, 2018 12:17 am

### Re: Question 9; 6th edition

The standard units for frequency are Hertz (Hz). Also the standard units for wavelength is meters. You always want to convert the units to this standard when using them for calculations.

Amy Dinh 1A
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

### Re: Question 9; 6th edition

For frequency, the standard unit is in s^-1 or Hertz (Hz). For wavelengths, meter is standard in calculations, however, you can change it to nanometers with conversions.

MaggieMatern_Dis1H
Posts: 30
Joined: Fri Sep 28, 2018 12:19 am

### Re: Question 9; 6th edition

When doing calculations that involves wavelength, e.g. $c=\lambda \nu$, the units for $\lambda$ should be in meters, but in conversions/final answers it usually makes more sense to represent this value in nanometers, which is why Lavelle/the solutions manual usually does so.

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