Quantum theory — Question 45
Original QCE Vault practice · 1 mark
Q45 · Practice questionComplex familiar1 mark
QUESTION 45
For hydrogen, the wavelength emitted in the ni=3 to nf=2 transition is closest to (A)121nm (B)486nm (C)656nm (D)1880nm WORKED SOLUTION
Answer C
1 markWorked solution
1/λ=R(1/22−1/32)=R(5/36). Hence λ=36/(5R)=6.56×10−7m=656nm. Select the correct option.
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