The equation derived by Bohr for the wavelengths of λ of the lines in hydrogen- like spectra is .The first member of the Balmer series of hydrogen has λ = 660 nm. Doubly ionized
is hydrogen-like. The wavelength of the first member of the Balmer series for doubly ionized
is
A) 73 nm.
B) 5.9 × 103 nm.
C) 150 nm.
D) 60 nm.
E) 1.8 × 10-3 nm.
Correct Answer:
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