## 6th Edition: Problem 1.9

$c=\lambda v$

joanneyseung22
Posts: 31
Joined: Fri Sep 28, 2018 12:15 am

### 6th Edition: Problem 1.9

For this textbook problem, it asks us to fill in the blanks for the missing portions of a chart (frequency, wavelength, energy of photon, and event). When I was comparing my answers, I didn't really know how to find the "event" of the corresponding frequencies and wavelengths in the chart. How do you get to these solutions using your given information: suntan, reading, microwave popcorn, and dental x-ray?

Matthew Choi 2H
Posts: 59
Joined: Fri Sep 28, 2018 12:18 am

### Re: 6th Edition: Problem 1.9

I used the chart that was found a few pages before the questions to identify which event correlated to which wavelength. I'm not sure if we have to memorize those sections though.

Elena Saab 4A
Posts: 43
Joined: Fri Sep 28, 2018 12:27 am

### Re: 6th Edition: Problem 1.9

You can determine the event by the frequency, wavelength, and energy based on a chart earlier in the chapter. I don't think that you will have to know these numbers, but you should know the range of visible light (400 nm to 700 nm).