Home
Class 12
PHYSICS
The wavlength of K(alpha), X-rays produc...

The wavlength of `K_(alpha),` X-rays produced by an X-ray tube 0.76Å . The atomic number of the anode material of the tube is

A

82

B

41

C

20

D

10

Text Solution

Verified by Experts

The correct Answer is:
B
For `K_(alpha)` X-ray line , `(1)/(lambda_(alpha))=R (Z-1)^(2)[(1)/(1^(2))-(1)/(2^(2))]-[1-(1)/(4)]`, `implies (1)/(lambda_(alpha))=(3)/(4)R(Z-1)^(2)`……..(1), with refrence to given data , `lambda _(alpha)=0.76A=0.76xx10^(-10)m`, `R= 1.097xx 10^(7)m`putting these values in equation (1). `(Z-1)^(2)= (4)/(3)(1)/(0.76xx10^(-10)xx1.097xx10^(7))cong 1600`, `implies Z-1 =40,implies Z=41`
Promotional Banner

Similar Questions

Explore conceptually related problems

The wavelength of k_(alpha) X- rays produced by an X - rays tube is 0.76 Å . The atomic number of the anode material of the tube is …….

The shorted wavelength of X- rays emitted from an X- rays tube depends on

The shorted wavelength of X- rays emitted from an X- rays tube depends on

Find maximum frequency of X-rays produced by an X-ray tube operating at a tube potential of 66 kV.

The X-ray beam coming from an X-ray tube

The wavelength of K_(alpha) X-ray line for an element is 0.42Å . Find the wavelength of K_(beta) line emitted by the same element.

The voltage applied to an X-ray tube is 18 kV. The maximum mass of phton emitted by the X-ray tube will be

The wavelength of K_alpha X-ray of tungsten is 21*3 pm. It takes 11*3 keV to knock out an electron from the L shell of a tungsten atom. What should be the minimum accelerating voltage across an X-ray tube having tungsten target which allows production of K_alpha X-ray?

An element of atomic number 9 emits K_(alpha) X-ray of wavelength lamda . Find the atomic number of the element which emits K_(alpha) X-ray of wavelength 4lamda .

Figure below shows a simple diagram of a modern X ray tube. (i.e. Coolidge tube). (i) Find the minimum wavelength of the X rays emitted by the X ray tube. (ii) What will be the effect of replacing the 6V battery with a 9V battery on the emitted X rays?