Question

The wavelength Ka of X-rays for two metals ‘A’ and ‘B’ are
4/1875R and 1/675R respectively, where ‘R’ is Rydberg
constant. Find the number of elements lying between A
and B according to their atomic numbers
(a) 3 (b) 1 (c) 4 (d) 5

Answer 1

Explanation:

Text Solution

3

6

5

4

Answer :

D

Solution :

Using<br> Forline,<br> For matel<br><br> Therefore ,element lie between