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Which of the following is correct statement ?


1 Answer

Answer : (a) Beta rays are same as cathode rays
Explanation :
Both beta rays and cathode rays are made up of electrons . So only (a) is correct
(b) Gamma rays are electro magnetic waves
(c) Alpha particles are doubly ionized helium atoms
(d) Protons and neutrons have approximately same mass .
answered Feb 28, 2014 by yamini.v

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