Question

The ratio of specific charge of an electron and an alpha particle is​

Answer 1

Answer:specefic charge is defined as charge to mass ratio.

If charge of electron is 'e' and mass of electron is 'm'

Charge of alpha particle is ‘2e’ and mass of alpha particle is '4m'

Specefic charge of electron = e/m

Specefic charge of alpha particle = 2e/4m

Specefic charge of electron /specefic charge of alpha particle = 2/1

Ratio =2 : 1

Explanation:

Answer 2

Explanation:

For electron

Charge on an electron =1.6022×10−19coulombs

mass of an electron =9.109×10−31g

So charge to mass raio will be =1.6022×10−19C/×9.109×10−31kg

=1.78×1011C/kg

For alpha particle

charge = 2 protons =2×1.6022×10−19coulombs

mass = mass of 2 protons + mass of 2 neutrons

=4×1.672×10−27kg

The charge of mass ratio e/m =2×1.6022×10−19C/(4×1.672×10−27kg=4.8×107C/kg