X-rays are produced by accelerating electrons | vedclass

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

Question

(D) The maximum frequency of $X$-rays produced in an $X$-ray tube is determined by the Duane-Hunt law,which states that the maximum frequency $
u_{\m

Vedclass · Accepted Answer

$(Z - 1)^2$

Vedclass · Answer

(D) The maximum frequency of $X$-rays produced in an $X$-ray tube is determined by the Duane-Hunt law,which states that the maximum frequency $
u_{\max}$ is given by $
u_{\max} = \frac{eV}{h}$.However,the question refers to the characteristic $X$-rays. According to Moseley's law,the frequency $
u$ of characteristic $X$-rays is given by $
u = a(Z - b)^2$.For the $K_{\alpha}$ line,the screening constant $b = 1$. Thus,the frequency is proportional to $(Z - 1)^2$.Given the options provided,the question specifically targets the relationship defined by Moseley's law for characteristic radiation.

$X$-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:

Similar Questions

The binding energy of the innermost electron in tungsten is $40 \, keV$. The energy of the characteristic $X$-rays emitted is:

The binding energy of the innermost electron is $40 \, keV$. To obtain characteristic $X$-rays using a tungsten target in an $X$-ray tube,the potential difference $V$ between the cathode and the anode must be:

The figure represents the observed intensity of $X-$ rays emitted by an $X-$ ray tube as a function of wavelength. The sharp peaks $A$ and $B$ denote

The difference between $\lambda_{K_{\alpha}}$ and $\lambda_{min}$ becomes twice if the accelerating potential changes from $3100 \ V$ to $12400 \ V$. Find $\lambda_{K_{\alpha}}$ in $\mathring{A}$. (Given $hc = 12400 \ eV \mathring{A}$)

When a beam of accelerated electrons hits a target,a continuous $X$-ray spectrum is emitted from the target. Which of the following wavelengths is absent in the $X$-ray spectrum,if the $X$-ray tube is operating at $40,000 \ V$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module