What would happen if we expand the box instead of compressing it?
A. Electron speeds decrease.
B. Electron speeds remain constant.
C. Electron speeds increase.

Question

What would happen if we expand the box instead of compressing it?
 A. Electron speeds decrease.
 B. Electron speeds remain constant.
 C. Electron speeds increase.

Shadow · Answer

Let me see if I can get the equation @563blackghost

Shadow · Answer

$$\lambda = \frac{ h }{ m_{e} v}$$

Shadow · Answer

Do those variables look familiar to you?

Shadow · Answer

It basically means, the wavelength is equal to Plank's constant divided by product of the mass of the electron multiplied by it's velocity.

563blackghost · Answer

*notes down* mkay

Shadow · Answer

Wavelength is measured in meters, and velocity in m/s

What we get is an inverse relationship between distance and speed.

Shadow · Answer

or 'velocity'

Shadow · Answer

So if the box is expanded, what do you think will happen to the velocity of the electrons?

563blackghost · Answer

it would slow down?

Shadow · Answer

Correct