Which of the following arrangements of radiations is in the order of decreasing penetrating power?
A
\(\alpha\), \(\beta\), \(\gamma\)
B
\(\alpha\), \(\gamma\), \(\beta\)
C
\(\gamma\), \(\beta\), \(\alpha\)
D
\(\beta\), \(\gamma\), \(\alpha\)
Verified Correct Answer: C.
Physical Principles & Numerical Solution
The alpha rays are the least penetrating, followed by beta rays, and gamma rays are the most penetrating.
in descending order \(\gamma, \beta, \alpha\)
Source: Myschool Past Questions Archive (Record #35646)