## de Broglie Relationship

$\lambda=\frac{h}{p}$

Victoria Luu - 1C
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

### de Broglie Relationship

Looking at question 1.33 in the sixth edition, I was wondering how we know what mass to use. I understand that in h/mv, h is given and v is given as well, but what information do you use to know what m is?

505194972 3k
Posts: 27
Joined: Fri Sep 28, 2018 12:25 am

### Re: de Broglie Relationship

The problem is asking about an electron and an electron's mass is a constant which is 9.11 x 10^-31.

Kelly Hollman
Posts: 33
Joined: Fri Sep 28, 2018 12:27 am

### Re: de Broglie Relationship

I agree, it's asking for the mass of the electron.

Michael_Navarro_1H
Posts: 29
Joined: Fri Sep 28, 2018 12:17 am

### Re: de Broglie Relationship

Dr. Lavelle posted a file on his website that contains a whole list of constants that will be useful throughout the quarter--the mass of an electron in addition to everything he has/will cover should be on there.