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Find the cutoff wavelength for the conti...

Find the cutoff wavelength for the continuous X-rays coming from an X-ray tube operating at `40 kV`.

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The correct Answer is:
`lambda=(hc)/(40xx10^(3)e)m=31.05 "pm"`
`lambda=(hc)/(40xx10^(3)e)m=31.05"pm"`
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