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Questions  

If   λm= 6563 A0 then wave length of second line for Balmer series will be

a
λ=163R
b
λ=365R
c
λ=43R
d
None of the above

detailed solution

Correct option is A

For Balmer series  = 1λ=R122−1n2  where  n=3,4,5For second line n = 4So,1λ=R122−142=316R⇒λ=163R

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