A hydrogen atom in the ground state is excited by monochromatic ratiation of wavelength lambda Å . The resulting spectrum consists of maximum 15 different lines. What is the wavelength lambda ? (R_H = 109677.8 cm^(-1))

A hydrogen atom in the ground state is excited by monochromatic ratiat

1.	A hydrogen atom in the ground state is excited by monochromatic ratiation of wavelength lambda Å . The resulting spectrum consists of maximum 15 different lines. What is the wavelength lambda ? (R_H = 109677.8 cm^(-1))
Answer» `937.3 Å` `1025 Å` `1236 Å` `1120 Å` Solution :No. of SPECTRAL lines `(N(n-1))/(2) = 15 impliesn = 6` `bar(upsilon) = 1/(lambda) = R(1/1 - 1/(36)) = (35R)/(36)` `lambda =(36)/(35R) = 937.3A^@`