B What is the shortest wavelength of all? >0 or h?

[Daniel Petka]

Theoretically of course, what is the shortest wavelength of all? Is it the size of the Planck's constant or just anything over zero?

 

[newjerseyrunner]

Theoretically of course, what is the shortest wavelength of all? Is it the size of the Planck's constant or just anything over zero?

Depends on what framework you are working with. Quantum mechanics has a minimum limit, which is the Planck length, General Relativity has smooth space and infinitely divisible energy, so gravity waves can be any size (theoretically.)

 

[Drakkith]

There is no minimum wavelength. Not even the Planck length. In the frame of reference of an observer traveling at a high velocity opposite the direction the wave is traveling, the wave would have a significantly shorter wavelength.

 

[hilbert2]

Theoretically of course, what is the shortest wavelength of all? Is it the size of the Planck's constant or just anything over zero?

You should not confuse the Planck length (which has units of distance) with Planck constant (which has units of angular momentum).

 

[Daniel Petka]

With De Broglie's formula a fast moving heavy particle would have a wavelength smaller than Plank's length. (yeah not constant :p)