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Physics
Beta rays emitted by a radioactive material are
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Q. Beta rays emitted by a radioactive material are
IIT JEE
IIT JEE 1983
A
electromagnetic radiations
22%
B
the electrons orbiting around the nucleus
24%
C
charged particles emitted by the nucleus
43%
D
neutral particles
12%
Solution:
Beta particles are fast moving electrons which are emitted by the nucleus.