Q. When white light (violet to red) is passed through hydrogen gas at room temperature, absorption lines will be observed in the

Atoms Report Error

A

Lyman series

19%

B

Balmer series

40%

C

Both(A) and (B)

28%

D

Neither(A) or(B)

14%

Solution:

At room temperature all atoms of hydrogen gas are in ground state in which only radiation of ultraviolet region can be absorbed to excite atoms from $n = 1$ to higher energy levels so visible light cannot excite any atom in ground state

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(A) Radius of the muonic orbit is $200$ times smaller than that of the electron.
(B) The speed of the $\mu^{-}$ in the $n^{th}$ orbit is $\frac{1}{200}$ times that of the electron in the $n^{th}$ orbit.
(C) The ionization energy of muonic atom is $200$ times more than that of an hydrogen atom.
(D) The momentum of the muon in the $n^{th}$ orbit is $200 $ times more than that of the electron.

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