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Question

Match each List - I with an appropriate pair of characteristics from List - II and select the correct answer using the code given below the lists.

ListIListII(I) Lyman series(P) maximum number of spectral line observed = 6(II) Balmer series(Q) maximum number of spectral line observed = 2(III) In a sample of H-atom for 5 upto (R) 2nd~line has wave number 8R92 transition(IV) In a single isolated H-atom for (S) 2nd line has wave number 3R163 upto 1 transition(T) Total number of spectral line is 10(U) Hydrogen spectral series

A
(I - S, U), (II - R, U), (III - Q), (IV - T)
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B
(I - R, U), (II - S, T), (III - P), (IV - U)
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C
(I - R, U), (II - S, U), (III - P, U), (IV - Q, U)
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D
(I - R, S), (II - S, T), (III - U), (IV - Q)
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Solution

The correct option is C (I - R, U), (II - S, U), (III - P, U), (IV - Q, U)
(I) For Lyman series, ¯v for second line (31)=R(1)2[112132]=8R9
(II) For Balmer series, ¯v for second line 42=R(1)2[122142]=3R16
(III) In a sample of H-atom for 52 transition, maximum number of spectral lines observed =(52)(52+1)2=6
(IV) In a single isolated H-atom for 31 transition, maximum number of spectral lines observed =2(32,21)

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