Energy of Electron in Different Orbits Numerical Class-12 Nootan ISC Physics Solution Ch-26 Atom, Origin of Spectra : Bohr’s Theory of Hydrogen Atom. Step by step solutions of Kumar and Mittal Physics of Nageen Prakashan as council latest prescribe guideline for upcoming exam. Visit official Website CISCE for detail information about ISC Board Class-12 Physics.
Energy of Electron in Different Orbits Numerical Class-12 Nootan ISC Physics Solution Ch-26 Atom, Origin of Spectra : Bohr’s Theory of Hydrogen Atom
| Board | ISC |
| Class | 12 |
| Subject | Physics |
| Book | Nootan |
| Chapter-26 | Atom, Origin of Spectra : Bohr’s Theory of Hydrogen Atom |
| Topics | Numericals on Energy of Electron in Different Orbits |
| Academic Session | 2025-2026 |
Numericals on Energy of Electron in Different Orbits
Class-12 Nootan ISC Physics Solution Ch-26 Atom, Origin of Spectra : Bohr’s Theory of Hydrogen Atom
Que-7: The energy of electron in the first orbit in hydrogen atom is -13.6 eV. What will be the energy in the second orbit?
Ans- The energy of electron in second orbit
E = -13.6/2² [E = -13.6/n²]
=> -13.6/4 = -3.4 eV
Que-8: Which level of the doubly-ionized lithium (Li++), with Z = 3, has the same energy as the ground-state energy of hydrogen atom (Z = 1). Compare the orbital radii of the two levels.
Ans- We know that double ionized of Li
E = -(2)² x 13.6/n² = -122.4/n² eV
∴ r3[Li++] / r1[H] = n = 3 level
–: End of Energy of Electron in Different Orbits Numerical Class-12 Nootan Solution :–
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