Homework Statement
In an old TV cathode ray tube, electrons are accelerated by a potential of 15 kV between the gun and screen. Find:
a) Kinetic energy of the electrons when they reach the screen
b) Its respective wavelength
c) Wavelength of the photons with maximum energy that are...
Well it makes sense why it would work for any position. If one of the distances get larger, the other one has to get smaller in the same proportion. This way the sum is always the same.
Oh no! Silly me!
I guess I was thinking too hard on this question, and blatantly ignoring an obvious mistake. Thanks for noticing. I'm glad that at least my analysis of the system was correct.
This is a problem I found while studying for an exam I have next thursday, and conceptually it doesn't make any sense for me!
NOTE - This is not a dieletrics problem.
Homework Statement
A conducting slab with a thickness d and area A is inserted into the space between the plates of a...