Modern Physics 4 Question 21

22. The shortest wavelength of $X$-rays emitted from an X-ray tube depends on

$(1982,3 M)$

(a) the current in the tube

(b) the voltage applied to the tube

(c) the nature of the gas in tube

(d) the atomic number of the target material

Assertion and Reason

Mark your answer as

(a) If Statement I is true, Statement II is true; Statement II is the correct explanation for Statement I.

(b) If Statement I is true, Statement II is true; Statement II is not a correct explanation for Statement I.

(c) If Statement I is true; Statement II is false.

(d) If Statement I is false; Statement II is true.

Show Answer

Solution:

  1. Shortest wavelength or cut-off wavelength depends only upon the voltage applied in the coolidge tube.


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