The radiationns from a naturally occuring radioactive substance as seen after deflection by a magnetic field in one direction are
Only `alpha`-rays b. Only `beta`-rays
c. Both `alpha`-and `beta-`rays d. Either `alpha`-or `beta`-rays

Options

A. a.Only `alpha`-rays
B. b. Only `beta`-rays
C. c. Both `alpha`-and `beta-`rays
D. d. Either `alpha`-or `beta`-rays

Answer

d. Either `alpha`-or `beta`-rays

Explanation

Both `alpha`particles deflect in opposite direction in the presence of magnetic field. Here only one deflection is observed that will be for either `alpha`- or `beta-`rays.