Modern Physics 4 Question 29

30. In an X-ray tube, electrons accelerated through a potential difference of 15,000V strike a copper target. The speed of the emitted X-ray inside the tube is ……. m/s.

(1992, 1M)

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Solution:

  1. X-rays are electromagnetic waves and electromagnetic waves travel with the speed of light i.e. 3.0×108m/s.


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