Question

Deuteron and `alpha` - particle are put 1 Å apart in air. Magnitude of intensity of electric field due to deuteron at `alpha` - particle is ____________.

Options

• Zero

• 2.88 x 10¹¹ newton / coulomb

• 1.44 x 10¹¹ newton / coulomb

• 5.76 x 10¹¹ newton / coulomb

Answer 1

Deuteron and `alpha` - particle are put 1 Å apart in air. Magnitude of intensity of electric field due to deuteron at `alpha` - particle is 1.44 x 10¹¹ newton / coulomb.

Explanation:

Due to deuteron, intensity of electric field at 1 Å distance,

`"E" = 1/(4 pi epsilon_0) . "e"/"r"^2`

`= (9 xx 10^9 xx 1.6 xx 10^-19)/10^-20`

`= 1.44 xx 10^11  "N/C"`