railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test General Science Chemistry Periodic Table
With reference to the radioactivity, which of the following statements is/are correct?
1. Radioactivity is a nuclear property.
2. Hydrogen bomb is prepared on the principle of nuclear fission.
Select the correct answer using the given below.
1
Only 1
2
Only 2
3
Both 1 and 2
4
Neither 1 nor 2