A) X-rays
B) y-rays
C) x-rays
D) p-rays
Correct Answer: A
Solution :
Professor Rontgen observered that when fast moving cathode rays strike a metal piece of high atomic weight and high melting point, a new kind of rays are produced. These rays are invisible to eye, but affect photographic plate in the same way as do light rays. He named these rays X-rays. While \[\alpha ,\beta ,\gamma \]rays are produced due to nuclear phenomenon of radioactivity.You need to login to perform this action.
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