Atoms And Nuclei Question 80
Question: Minimum excitation potential of Bohr’s first orbit in hydrogen atom is [BHU 1998; JIPMER 2001, 02; Pb. PMT 2004]
Options:
A) 13.6 V
B) 3.4 V
C) 10.2 V
D) 3.6 V
Show Answer
Answer:
Correct Answer: C
Solution:
Excitation potential $ =\frac{\text{Excitation energy}}{e} $
Minimum excitation energy corresponds to excitation from $ n=1 $ to $ n=2 $ \ Minimum excitation energy in hydrogen atom $ =-3.4-(-13.6)=+10.2,eV $
so minimum excitation potential = 10.2 eV.
