Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • . The kinetic energy of the electron in an orbit of radius r in hydrogen atom is (e = electronic charge)Option: 1 <img alt="\mathrm{\frac{e^{2}}{r^{2

. The kinetic energy of the electron in an orbit of radius r in hydrogen atom is (e = electronic charge)

Option: 1

\mathrm{\frac{e^{2}}{r^{2}}}


Option: 2

\mathrm{\frac{e^{2}}{2r}}


Option: 3

\mathrm{\frac{e^{2}}{r}}


Option: 4

\mathrm{\frac{e^{2}}{2r^{2}}}


Answers (1)

best_answer

Potential energy of electron in nth orbit of radius r in

\mathrm{H-atom \, U=-\frac{e^2}{r} (in \, CGS)}
\mathrm{\because \text { K.E. }=\frac{1}{2}|P . E .| \Rightarrow K=\frac{e^2}{2 r}}

Posted by

jitender.kumar

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2026 Registration LIVE: NTA session 1 form link at jeemain.nta.nic.in; application deadline
anam-khan

JEE 2026: IIT admissions show major shift toward AI, data science, away from core engineering courses
anam-khan

JEE Main 2026: NIT Delhi cut-offs for BTech courses show ever-increasing demands for AI, computer skills

Latest Question