Atoms And Nuclei Question 27

Question: The radius of electron’s second stationary orbit in Bohr’s atom is R. The radius of the third orbit will be [EAMCET 1992; DPMT 1999]

Options:

A) 3 R

B) 2.25 R

C) 9 R

D) R3

Show Answer

Answer:

Correct Answer: B

Solution:

r∝n2
Þ r(n=2)r(n=3)=49
Þ r(n=3)=94R=2.25,R

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