De Brogile's Equation  [ENDORSED]


Moderators: Chem_Mod, Chem_Admin

Katherine Osby
Posts: 10
Joined: Fri Sep 25, 2015 3:00 am

De Brogile's Equation

Postby Katherine Osby » Thu Oct 01, 2015 9:40 am

Question: For De Brogile's equation, should you always make sure that mass is in terms of kilograms?

Madeline Offerman 3G
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

Re: De Brogile's Equation

Postby Madeline Offerman 3G » Thu Oct 01, 2015 9:52 am

Yes, it must be converted to kilograms for the equation to work

Chem_Mod
Posts: 18880
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 714 times

Re: De Brogile's Equation  [ENDORSED]

Postby Chem_Mod » Thu Oct 01, 2015 2:07 pm

The de Broglie equation, , can be used with any unit of mass provided that you convert h, Planck's constant, to that mass. By convention, Planck's constant is in Joules, , where Joules is in . One can see that Planck's constant is using kilograms so, unless you want to convert Planck's constant, the equation as given works for kilograms only.

704628249
Posts: 43
Joined: Fri Sep 25, 2015 3:00 am

Re: De Brogile's Equation

Postby 704628249 » Wed Dec 02, 2015 6:32 pm

Yes. You always need to keep the units in mind. If not, the equations do not apply.


Return to “Properties of Light”

Who is online

Users browsing this forum: No registered users and 1 guest