0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

An electron is moving in 4th orbit and its de-Broglie wavelength is λ. What is the circumference of the fourth orbit?
  1. 2/λ
  2. 2λ
  3. 4λ
  4. 4/λ

A
2/λ
B
4/λ
C
4λ
D
2λ
Solution
Verified by Toppr

Bohr's model says that, mvr=nh/2π.
As per DeBroglie's theory, λ=h/mv.
Therefore, 2πr=nh/mv=nλ.
DeBroglie's Wavelength of electron in 4th orbit =λ.
Therefore circumference of 4th orbit =4λ.

Was this answer helpful?
6
Similar Questions
Q1
An electron is moving in 4th orbit and its de-Broglie wavelength is λ. What is the circumference of the fourth orbit?
View Solution
Q2
An electron is moving in Bohr's fourth orbit. Its de-Broglie wavelength is λ. What is the circumference of the fourth orbit?
View Solution
Q3
In an hydrogen atom, an electron is moving in the nth orbit. The circumference S of the orbit and the de-Broglie wavelength λ of the moving electron are related by the equation:
View Solution
Q4
The de Broglie wavelength of an electron moving in a circular orbit is λ. The minimum radius of orbit is:
View Solution
Q5
The circumference of nth orbit in H-atom can be expressed in terms of de Broglie wavelength λ as:
View Solution