Question

What is the angular momentum of an electron of de-Broglie wavelength l? Given : r is the radius of orbit –

• A. $\frac{rh}{\lambda}$
• B. $\frac{2rh}{\lambda}$
• C. $\frac{3rh}{\lambda}$
• D. $\frac{4rh}{\lambda}$

Answer 1

Answer: (A)

$\frac{rh}{\lambda}$

Answer 2

mvr = $\frac{h}{\lambda}$ . r = $\frac{rh}{\lambda}$