Which of the following wavelength is not possible for an X-ray tube which is operated at 40 kV.

Question

Which of the following wavelength is not possible for an X-ray tube which is operated at 40 kV. (A)  0.25 mathringA  (B)  0.5 mathringA  (C)  0.52 mathringA  (D)  1 mathringA

Tardigrade Admin · Accepted Answer

Minimum wavelength of X-rays λ min =(12375/V) =(12375/40000)=0.32 mathringA Therefore, the wavelength 0.25 mathringA is not possible because it is less than 0.32 mathringA

Q. Which of the following wavelength is not possible for an X-ray tube which is operated at $40 kV .$

$0.25 \overset{˚}{A}$

$0.5 \overset{˚}{A}$

$0.52 \overset{˚}{A}$

$1 \overset{˚}{A}$

Minimum wavelength of X-rays
$λ_{m i n} = \frac{12375}{V}$
$= \frac{12375}{40000} = 0.32 \overset{˚}{A}$
Therefore, the wavelength $0.25 \overset{˚}{A}$ is not possible because it is less than $0.32 \overset{˚}{A}$

Q. Which of the following wavelength is not possible for an X-ray tube which is operated at 40kV.

0.25A˚

0.5A˚

0.52A˚

1A˚