Question

The longest wavelength in Balmer series of hydrogen spectrum will be
(a) 6557 Å
(b) 1216 Å
(c) 4800 Å
(d) 5600 Å

Answer 1

Answer:

4800 °A.

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Answer 2

Answer:

the answer is 6563A° which is approximately equals to 6557A°

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