Answer the question number 1
Dear Student,
E = hc/λ = 6.63 x 10-34 J s x 3 x 108 m s-1 / 1 m = 19.89 x 10-26 J
= 1.99 x 10-25 J
We know that I eV = 1.6 x 10-19 J
So I J = 1/1.6 x 10-19 eV
So the required energy = 1.99 x 10-25 / 1.6 x 10-19
=1.24 x 10-6 e V
=1.24 µ eV
E = hc/λ = 6.63 x 10-34 J s x 3 x 108 m s-1 / 1 m = 19.89 x 10-26 J
= 1.99 x 10-25 J
We know that I eV = 1.6 x 10-19 J
So I J = 1/1.6 x 10-19 eV
So the required energy = 1.99 x 10-25 / 1.6 x 10-19
=1.24 x 10-6 e V
=1.24 µ eV
