Which can pass through 20 cm thickness of the steel [MNR 1985; CPMT 19 – McqOptions

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1.	Which can pass through 20 cm thickness of the steel [MNR 1985; CPMT 1990; RPET 2000]
A.	\[\alpha -\]particles
B.	\[\beta -\]particles
C.	\[\gamma -\]rays
D.	Ultraviolet rays
Answer» D. Ultraviolet rays

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