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Class 12 Physics Practice Test: Atoms
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Class 12 Physics Practice Test: Atoms
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10 Questions

1. Find out the minimum energy required to take out the only one electron from the ground state of Li+?
2. Which source is associated with a line emission spectrum?
3. The size of the atom is proportional to which of the following?
4. What is the energy required to ionize an H-atom from the third excited state, if ground state ionization energy of H-atom is 13.6 eV?
5. Calculate the ratio of the kinetic energy for the n = 2 electron for the Li atom to that of Be+ ion?
6. What is the ratio of minimum to maximum wavelength in the Balmer series?
7. What is the ratio of minimum to maximum wavelength in the Balmer series?
8. The Bohr model of atoms uses Einstein’s photoelectric equation.
9. Which source is associated with a line emission spectrum?
10. The size of the atom is proportional to which of the following?

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