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A beam of electrons striking a cooper ta...


A beam of electrons striking a cooper target produces X-rays. Its spectrum is as shown. Keeping the voltage same if the copper target is replaced with a different metal, the cut-off wavelength and characteristic lines of the new spectrum will change in comparison with old as:

A

Cut - off wavelength will remain unchanged while characteristic lines will be different

B

Both cut - off wavelength and characteristic lines will remain unchanged

C

Both cut - off wavelength and characteristic lines will be different

D

Cut - off wavelength will be different while characteristic lines will remain unchanged

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The correct Answer is:
A
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