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Recent questions tagged telegram-5048
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(chatquestion)...When an atomic gas or vapour is excited at low pressure, by passingan electriccurrent through itthen (a) emission spectrum is observed (b) absorption spectrum is observed (c) band spectrum is observed (d) both (b) and (c) strum of hydrogen,
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telegram-5048
asked
Feb 21, 2020
by
balaji.thirumalai
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