The intensity of X-rays from a Coolidge tube | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The wavelength of the characteristic $X$-ray line,such as the ${K_\alpha }$ line $({\lambda _k})$,depends only on the material of the target and i

Vedclass · Accepted Answer

$({\lambda _K} - {\lambda _C})$ increases

Vedclass · Answer

(A) The wavelength of the characteristic $X$-ray line,such as the ${K_\alpha }$ line $({\lambda _k})$,depends only on the material of the target and is independent of the accelerating voltage $(V)$.The minimum wavelength of the continuous $X$-ray spectrum $({\lambda _c})$ is given by the Duane-Hunt law: ${\lambda _c} = \frac{hc}{eV}$.From this relation,it is clear that ${\lambda _c}$ is inversely proportional to the accelerating voltage $(V)$.As the accelerating voltage $(V)$ is increased,${\lambda _c}$ decreases,while ${\lambda _k}$ remains constant.Therefore,the difference $({\lambda _K} - {\lambda _C})$ will increase.

The intensity of $X$-rays from a Coolidge tube is plotted against wavelength as shown in the figure. The minimum wavelength found is ${\lambda _c}$ and the wavelength of the ${K_\alpha }$ line is ${\lambda _k}$. As the accelerating voltage is increased:

Similar Questions

For the structural analysis of crystals, $X-$ rays are used because

$STATEMENT-1$: If the accelerating potential in an $X$-ray tube is increased, the wavelengths of the characteristic $X$-rays do not change. because
$STATEMENT-2$: When an electron beam strikes the target in an $X$-ray tube, part of the kinetic energy is converted into $X$-ray energy.

The patient is asked to drink $BaSO_4$ for examining the stomach by $X$-rays because $X$-rays are

The wavelength of the $K_{\alpha}$ $X$-ray produced by an $X$-ray tube is $0.76 \ \mathring{A}$. The atomic number of the anode material is ...

$X$-rays are produced by accelerating electrons through a potential difference $V$ and letting them strike a metal target of atomic number $Z$. The highest frequency of the $X$-rays produced is proportional to:

Vedclass Test Series

Exam Paper Generator

Online Exam Module