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In a Coolidge tube, the potential differ...

In a Coolidge tube, the potential difference used to accelerate the electrons is increased from 24. 8 kV to 49.6 kV . As a result, the difference between the wavelength of `K_(alpha)` -line and minimum wavelength becomes two times. The initial wavelength of the `K_(alpha)` line is [Take `(hc)/(e) = 12 .4 kV Å`]

A

`0.75Å`

B

`1.50Å`

C

`0.25Å`

D

`0.50Å`

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A
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