10 and 20
12 and 24
20 and 10
24 and 12
Correct answer is C
2311Na + Proton → pqX + alpha particle
Represent;
2311Na + 11P → pqX + 42He
Thus from the above equations, p = 20 and q = 10
Planets do not twinkle because ...
The rising of a liquid in an open and ended glass tube of narrow bore is ...
In which of the following is the expansion of solids a disadvantage? ...
Which of the following can be described as high tension transmission? ...
Large astronomical telescopes always use ___________ as objective ...