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  • Stuck here, help me understand: The potential difference applied to an X-ray tube is increased. As a result, in the emitted radiation:

The potential difference applied to an X-ray tube is increased. As a result, in the emitted radiation:

  • Option 1)

    the maximum wavelength increases

     

  • Option 2)

    the minimum wave length increases

     

  • Option 3)

     the minimum wavelength remains unchanged

     

  • Option 4)

    the minimum wave length decreases

 

Answers (1)

best_answer

 

Continuous x-ray -

\lambda ^{min}=\frac{hc}{ev}

- wherein

Also called cutoff wavelength . All other wavelength are greater than this.

 

 For X ray.

\lambda ^{min}=\frac{hc}{ev} \Rightarrow \lambda ^{min} \alpha ^{-} \frac{1}{v}

As we increase the applied potential difference, \lambda ^{min} will decrease.


Option 1)

the maximum wavelength increases

 

This solution is incorrect.

Option 2)

the minimum wave length increases

 

This solution is incorrect.

Option 3)

 the minimum wavelength remains unchanged

 

This solution is incorrect.

Option 4)

the minimum wave length decreases

This solution is correct.

Posted by

prateek

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