Nuclear Physics and RadioactivityHard
Question
The wavelength of Kα X-rays of two metals ′A′ and ′B′ are 
and 
respectively, where ′R′ is Rydberg constant. The number of elements lying between ′A′ and ′B′ according to their aomic number is :
and respectively, where ′R′ is Rydberg constant. The number of elements lying between ′A′ and ′B′ according to their aomic number is :Options
A.3
B.6
C.5
D.4
Solution
= R(Z - 1)2 
For wavelength of Kα n1 = 1 to n2 = 2
= R (ZA - 1)2
................(i)and
= R[ZB - 1]2 ...............(ii)By solving eq. (i) & (ii) we get
ZA = 26 and ZB = 31
[For elements lie between these two]
Create a free account to view solution
View Solution FreeMore Nuclear Physics and Radioactivity Questions
The half-life period of a radio-active element X is same as the mean life time of another radioactive element Y. Initial...zXM + 2He4 → 15P30 + 0n1...The half life of a radioactive isotope is 2 hour, after which times it remains 1/64 times of its initial value...Choose the CORRECT option(s)...Two particles have charges. If they are accelerated through identical potential differences, then the ratio of their de ...