## Measurable wavelike properties?

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

Isabel Bellon 4F
Posts: 30
Joined: Fri Sep 28, 2018 12:27 am

### Measurable wavelike properties?

In lecture, we went over a couple of examples of applying De Broglie's equation. When we get the wavelength of an object, what do we use to compare the measurement to in order to say if it does or does not have measurable wavelike properties? I've heard that it was 10^-18, but I'm not sure why.

Layal Suboh 1I
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am

### Re: Measurable wavelike properties?

Hi!

You compare the wavelength you calculated to the speed of light (3.00*10^8 m/s). If the wavelength you calculated is greater than the speed of light, then it is unrealistic.

Hope this helps!

Ashita Tanwar 3H
Posts: 30
Joined: Fri Sep 28, 2018 12:23 am

### Re: Measurable wavelike properties?

There are certain waves that are able to be detected/tested for in the lab setting and it just so happens that waves beyond 10^-18 are too small to be detected. That's why the cutoff is at 10^-18 :)