Ahydrogen electron returns from energy level n = 3 to n = 1 during electron transition. what will the spectral lines emitted by this electron look like under a spectroscope? dark line spectrum white light continuous spectrum bright line spectrum

when electron jump from n=3 to n=1 then the photon coming out is of Lyman series. Here Lyman series photon is also known as Ultraviolet range of photon

Explanation:

As per Bohr's theory we know that when electron make transition from higher energy level to lower energy level then it emits photons of different energy range.

Here we know that when electron makes transition from any higher level to n=1 then it is ultraviolet range of photons.

While if electron makes transition from any higher energy range to n= 2 then it is visible range of photons

and for any higher energy level to n=3 then it is infrared range of photon

So here the spectrum received in this case is of ultraviolet range

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that would be because of both gravity and friction. so     c