Modern Physics Ques 170
- In an X-ray tube, electrons accelerated through a potential difference of $15,000 $ $V$ strike a copper target. The speed of the emitted X-ray inside the tube is ……. $m / s$.
(1992, 1M)
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Answer:
Correct Answer: 170.$(3 \times 10^8)$
Solution:
- X-rays are electromagnetic waves and electromagnetic waves travel with the speed of light i.e. $3.0 \times 10^{8}$ $ m / s$.
BETA
