Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

Consider an electron in the nth orbit of a hydrogen atom in the Bohr model. The circumference of the orbit can be expressed in terms of the de Broglie wavelength λ of that electron as

Options:

(0.259) nλ

$\sqrt{n}$ λ

(13.6) λ

Correct Answer:

Explanation:

According to Bohr's theory $m v r=n \frac{h}{2 \pi}$

$\Rightarrow$ Circumference $2 \pi r=n\left(\frac{h}{m v}\right)=n \lambda$