Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Structure of Atom
The order of penetration of three radioactive rays through metal sheet is
1
γ > β > α
2
α > β > γ
3
β > α > γ
4
More than one of the above
5
None of the above