A beta and gamma source, Co-60, was placed in a chamber which was first lined with paper and then, after, with copper and lead. A Geiger counter was used in both cases to detect the emission of radiation. You expect
es -0)
A)
no emissions to be recorded in either case.
B)
strong emissions to be recorded outside the chamber in both cases.
some emissions when the chamber is lined with paper, but none when lead
Lined,
D)
strong emissions when the chamber is paper lined; faint emissions when
lead lined.