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Calculate the cut-off wavelength and cut...

Calculate the cut-off wavelength and cutoff frequency of x-rays from an x-ray tube of accelerating potential 20,000 V.

Text Solution

Verified by Experts

The cut-off wavelength of the characteristic X-rays is
`lambda_(0)=(12400)/(V)`  `A=(12400)/(20000)A`=0.62A
The corresponding frequency is
`V_(0)=(c)/(lambda_(0))=(3xx10^(8))/(0.62xx10^(-10))=4.84xx10^(18Hz`
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