Question

Which of the following equations was suggested by de Broglie?

• A. $2\pi r=n\lambda$
• B. $\lambda =\frac{\pi }{h}$
• C. $\pi r^2=n\lambda$
• D. $2\pi r=\frac{nh}{\lambda }$

Answer 1

Answer: (A)

$mvr=n\frac{h}{2\pi }$

$2\pi r=n\frac{h}{mv}$

$2\pi r=n\lambda$