1.

The wavelength of k_(alpha) line of X-ray spectrum of an ekonsent of atomic number z = 11 in lambda. The wavelength of same time of element of atomic number is z' is 4lambda. z' is

Answer»

4
6
44
11

Solution :By Mosley.s LAW `V=a^(2) (z-B)^(2)`
`v_(1)/v_(2)=((z_(1)-b)^(2))/((z_(2)-b)^(2))`
For `K_(alpha), b=1`
`v_(1)/v_(2)=((z_(1)-1)/(z_(2)-1))^(2) rArr lambda_(2)/lambda_(1) =((z_(1)-1)/(z_(2)-1))^(2)`
`(4LAMBDA)/(lambda)=((11-1)^(2))/((z-1)^(2))`
Then z=6


Discussion

No Comment Found

Related InterviewSolutions