NTA Abhyas JEE Main2020ChemistryStructure of AtomPractice

According to Bohr's principle, which is the correct relation between principle quantum number ( n ) and radius of orbit ( r ) ?

Options

Ar ∝ n
Br ∝ n 2
Cr ∝ 1 n
Dr ∝ 1 n 2

Correct answer

B. r ∝ n 2

Step-by-step solution

Bohr suggest a formulae to calculate the radius and energy of each orbit and gave the following formulae r n = n 2 h 2 4 π 2 k m e 2 Z Where except n 2 , all other unit are constant so r n ∝ n 2 .

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