Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

Options:

a

b

c

d

Correct Answer:

b

Explanation:

magnetic Field is $B = \frac{\mu_0 I}{2r} = \frac{\mu_0 q}{2rT}$

Since $ r \propto n^2 , T \propto n^3  , rT \propto n^5$

$ \Rightarrow B \propto n^{-5}$