A) \[2\pi r\]
B) \[4\pi r\]
C) \[8\pi r\]
D) \[16\pi r\]
Correct Answer: C
Solution :
de Broglie wavelength \[\lambda =\frac{h}{P}=\frac{h}{mv}\] .?.(1) Multiply and divide RHS of equation (1) by r \[\operatorname{mvr}=\frac{nh}{2\pi }\] ?..(2) \[\lambda =\frac{h}{mvr}\times r=\frac{h}{P}\times 2\pi =\frac{2\pi r}{n}\]use equation (2) \[\lambda =\frac{2\pi \times {{\operatorname{n}}^{2}}r}{n}\therefore \operatorname{R}=\frac{{{n}_{2}}{{r}_{o}}}{\operatorname{z}}\] \[\lambda =2\pi \operatorname{nr}\] \[\lambda \left( \operatorname{n}=4 \right)=8\pi \operatorname{r}\]
You need to login to perform this action.
You will be redirected in
3 sec
