Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : The binding energy per nucleon is found to be practically independent of the atomic number A, for nuclei with mass numbers between 30 and 170.
Reason (R) : Nuclear force is long range.
In the light of the above statements, choose the correct answer from the options given below :
1
(A) is false but (R) is true
2
(A) is true but (R) is false
3
Both (A) and (R) are true and (R) is the correct explanation of (A)
4
Both (A) and (R) are true but (R) is NOT the correct explanation of (A)