In coolidge tube, if f and `lambda` represent the frequency and wavelength of `K_(alpha)` -line for a metal of atomic number Z, then identify the statement which represents a straight line

Options

A. `sqrtf versus Z`
B. `(1)/(sqrtlambda) versus Z`
C. `f versus Z`
D. `lambda versus Z`

Answer

A, B

Explanation

`sqrtf prop (Z-b)
If f versus Z is a straight line.
`f =(c )/(lambda)`
Hence, `(1)/(sqrtlambda)` versus Z is also a straight line.