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which of the following statements about hydrogen spectrum is/are correct??(a) all the lines of Lyman series lie in ultraviolet region(b) all the lines ofBalmer series lie invisible region(c) all the lines ofPaschen series lie ininfrared region(d) none of thesethe soln given says that only option a and c are correct..why not option b????then why do we say that balmer series lies in visible region????

Deepak Patra , 10 Years ago
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