CBSE Class 9 Answered
is positive electron discovered till now
Asked by | 05 May, 2008, 10:47: PM
Expert Answer
Dear student,
Yes,positive electron referred to as positron has been discovered way back in 1932.The existence of antiparticles for electrons was predicted in 1928 by P. A. M. Dirac's relativistic quantum theory of the electron. According to the theory both positive and negative values are possible for the total relativistic energy of a free electron. In 1932, Carl D. Anderson, while studying cosmic rays, discovered the predicted positron, the first known antiparticle.
Answered by | 14 Jun, 2008, 05:00: AM
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