crichter7932 crichter7932

15-03-2024
Physics

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Taking the wavelength of first Balmer line in hydrogen spectrum (n=3 to n=2) as 660nm, the wavelength of the second Balmer line(n=4 to n=2) will be:
A.889.2nm
B.642.7nm
C.488.9nm
D.388.9nm

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