The ionization energy of a $H$ atom is $13.6 \, eV$. The energy required to excite the electron from the ground state $(n=1)$ to the first excited state $(n=2)$ is ... $eV$.

  • A
    $3.4$
  • B
    $10.2$
  • C
    $12.1$
  • D
    $1.5$

Explore More

Similar Questions

What transition in $He^{+}$ ion shall have the same wave number as the first line in Balmer series of hydrogen atom?

What is the maximum wavelength in the Lyman series of $He^{+}$ ion?

If the radius and energy of the second Bohr orbit of a hydrogen atom are $r_2$ and $E_2$, respectively, then the radius and energy of the third Bohr orbit will be, respectively:

The distance between the $3^{rd}$ and $2^{nd}$ Bohr's orbits in the hydrogen atom is

In which of the following transitions is a photon of maximum energy absorbed?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo