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Class XII Physics Atoms 3
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Question 1
In which of the following systems will the radius of the first orbit be minimum ?
Question 2
The radius of the shortest orbit in a one electron system is 18 pm. It may be–
Question 3
Which of the following parameters is the same for all hydrogen like atoms in their ground states?
Question 4
If En and Jn are the magnitude of total energy and angular momentum of electron in the nth Bohr orbit respectively, then -
Question 5
The value of series limit in the case of paschen series is -
Question 6
Three atomic states of a hydrogenic atom are shown in the figure. The transition from C to B yields a photon of wavelength 364.6 nm and the transition from B to A yields a photon of wavelength 121.5 nm. Then the transition from C to A will yield a photon of wavelength –
Question 7
An excited hydrogen atom emits a photon of wavelength λin returning to the ground state. If R is the Rydberg's constant, then the quantum number n of the excited state is -
Question 8
Suppose that the potential energy of an hypothetical atom consisting of a proton and an electron is given by U = – ke2/3r3. Then if Bohr's postulates are applied to this atom, then the radius of the nth orbit will be proportional to
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Sep 20JEE & BITSAT