1.

Which statement is incorrect      [CPMT 1982]

A.                 \[\alpha \]-rays have more penetrating power than \[\beta \]-rays
B.                 \[\alpha \]-rays have less penetrating power than \[\gamma \]-rays
C.                 \[\beta \]-rays have less penetrating power than \[\gamma \]-rays
D.                 \[\beta \]-rays have more penetrating power than \[\alpha \]-rays
Answer» B.                 \[\alpha \]-rays have less penetrating power than \[\gamma \]-rays


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