Question

***Quantum Physics***
How do you find the uncertainty of a wavelength?

Answer 1

#4 in pic

Answer 2

can you please explain how you got your following answers?

Answer 3

#2 uses the equations \[\Delta P*\Delta x \ge \hbar/2\] and \[\Delta E*\Delta t \ge \hbar/2\] . You just solve for \[\Delta x\]

Answer 4

and for #3 you use momentum of photon= E/c to fin Pavg. then you use the \[\Delta p\] you originally calculated in #2 to find the ratio

Answer 5

so any ideas for #4?

Answer 6

Mhm I guess you can try using \[E = \frac{ hc }{\lambda } \] which would give you a corresponding spread in wavelength of \[\Delta \lambda = \lambda \frac{ \Delta E }{ E }\]

Answer 7

...........it worked

Answer 8

:)

Answer 9

hmmm let me try to derive ur equation

Answer 10

It requires calculus

Answer 11

im in diff eq so no prob

Answer 12

Ah :) have fun!

Answer 13

Thanks for the help

Answer 14

Your welcome :)