104 A gas of monoatomic hydrogen is bombarded with a stream of electrons that have been accelerated from rest through a

Question

104 A gas of monoatomic hydrogen is bombarded with a stream of electrons that have been accelerated from rest through a potential difference of 12 75 volt In the emission spectrum one cannot observe any line of b Balmer series a Lyman series c Paschen series d Pfund series BHU

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