Question

4. Area of first Brillouin zone is :
(A) 472
(B) 412 / 2
(C) 47%a2
(D) 212a
5. Second Brillouin zone is :
27
(A)*skin
(B)
- 2n
to it and i to
a
a
a
-TT
-
(C) -27 to
and
21
- to
a
(D) None of these
a
a
measure​

Answer 1

Explanation:

20 labour can dig a pound in 14 days. how many days will it take even labourers to dig the same pond?

Answer 2

Answer:

no idea about the answer sorry