HSC Science (Computer Science) 12th Board ExamMaharashtra State Board
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Linear Momentum of an Electron in Bohr Orbit of H-atom (Principal Quantum Number n) is Proportional to - HSC Science (Computer Science) 12th Board Exam - Physics

Question

Linear momentum of an electron in Bohr orbit of H-atom (principal quantum number n) is proportional to..................................

1. 1/n2
2. 1/n
3. n
4. n2

Solution

(b) 1/n

Linear momentum, p = mv

Velocity of electron in Bohr's orbit is given as

"v"=e^2/(2epsilon_0"nh")

therefore"mv"=e^2/(2epsilon_0"nh")

rArr"p"=(me^2)/(2epsilon_0"nh")

rArr"p"prop1/"n"

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2014-2015 (March) (with solutions)
Question 5.4 | 1.00 mark

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Solution Linear Momentum of an Electron in Bohr Orbit of H-atom (Principal Quantum Number n) is Proportional to Concept: Bohr'S Model for Hydrogen Atom.
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