Rittikahazra
Specific charge means Charge/Mass ratio. Specific charge of proton = 1. Specific charge of alpha particle = 2 ( 2 protons and 2 neutrons, neutrons have same mass as protons but charge is zero) Therefore, ratio of specific charge of protons to alpha particles =1:2 so the correct option is (b)
Answers & Comments
hello Friend________✌️✌️✌️✌️
good morning___________
_______________
here's your answer..........
Specific charge = charge /mass
Now, its convinient to take unit mass as ‘u’ and charge i am taking charge of proton as +1 and that of alpha particle as +2
Specific charge of proton = 1/1
Similarly that of alpha particle(which is nothing but that of He nucleus) =2/4=1/2
Ratio=2:1
Specific charge of proton = 1.
Specific charge of alpha particle = 2 ( 2 protons and 2 neutrons, neutrons have same mass as protons but charge is zero)
Therefore, ratio of specific charge of protons to alpha particles =1:2
so the correct option is (b)