Q.

Statement 1 : Wavelength of I line of Humphrey series is more than I line of Lyman series in H-atom.

Statement 2 : ΔE=hcλ

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a

Both Statement 1 and Statement 2 are true .

b

Statement 1 is true and Statement 2 is false.  

c

 Statement 1 is false and Statement 2 is true.

d

Both Statement 1 and Statement 2 are false.

answer is A.

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Detailed Solution

ΔE1=E6E5 in Humphrey series  and  ΔE=E2E1 for Lyman series.

          ΔE>  ΔE1

λLyman   >    λHumphry

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Statement 1 : Wavelength of I line of Humphrey series is more than I line of Lyman series in H-atom.Statement 2 : ΔE=hcλ