Question

What is the de Broglie wavelength for a `"0.01 kg"` particle moving at `"10 m/s"`"?

Answer 1

I got: `6.63xx10^-33m`

Explanation:

We know that the deBroglie wavelength is:

`lambda=h/p`

where:

• `h=6.63xx10^-34` `"J"cdot"s"` is Planck's constant;
• `p=mv` is the linear momentum.

We get:

`lambda=(6.63xx10^-34)/(0.01*10)=6.63xx10^-33` `"m"`,

too small to be detected by any device.

This is indicative of a large, non-quantum system.