| ⇦ | 
| ⇨ |
The total energy of electron in the ground state of hydrogen atom is -13.6 eV. The kinetic energy of an electron in the first excited state is
Options
(a) 6.8 eV
(b) 13.6 eV
(c) 1.7 eV
(d) 3.4 eV
Correct Answer:
3.4 eV
Explanation:
Energy in the first excited state
= – 13.6 / n² = – 13.6 / 2² = – 3.4 eV
But K.E. = – (Total energy) = +3.4 eV.
Related Questions: - An A.C source is rated at 220 V, 50 Hz. The time taken for voltage to change
- Which of the following pairs of quantities does not have same dimensional
- The young’s modulus of steel is twice that of brass. Two wires of same length
- A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis
- In R-L-C series circuit, the potential differences across each element is 20 V.
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An A.C source is rated at 220 V, 50 Hz. The time taken for voltage to change
- Which of the following pairs of quantities does not have same dimensional
- The young’s modulus of steel is twice that of brass. Two wires of same length
- A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis
- In R-L-C series circuit, the potential differences across each element is 20 V.
Topics: Atoms and Nuclei (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply