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Question
When cathode rays strike a target of high atomic weight, they give rise to
Options:
A .  alpha-rays
B .  beta and gamma rays
C .  X-rays
D .  Positive rays
Answer: Option C
When cathode rays strike a solid target of high atomic weight and high melting point such as tungsten, molybdenum, etc, they give rise to a highly penetrating radiation called the X-rays (LIT Physics by Dr. P.K Agarwal).

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