I know that only one question is allowed on the site so I will post 3 questions one for every subquestion this is for s

[answerhappygod]

I know that only one question is allowed on the
site so I will post 3 questions one for every
subquestion this is for subquestion number 2

I Know That Only One Question Is Allowed On The Site So I Will Post 3 Questions One For Every Subquestion This Is For S 1 (6.46 KiB) Viewed 26 times

1) what is the effective mass of an electron in the conduction
band in energy E=0
2) what is the effective mass of an electron in the conduction
band for a very big k values
3) find the equation for 1/m(k) for a realy small k values ,
(write only the equation where k in the first power ( k^1, not k^2,
k^3...) )

I Know That Only One Question Is Allowed On The Site So I Will Post 3 Questions One For Every Subquestion This Is For S 2 (1.94 KiB) Viewed 26 times

I Know That Only One Question Is Allowed On The Site So I Will Post 3 Questions One For Every Subquestion This Is For S 3 (2.14 KiB) Viewed 26 times

h?k2 E(1 + aE) = 2m
1 1 1 V1 (1+x=1+-x-x'+ x + = x 2 8 16
-1 m m 1 d’E tdk 2