45 z h 800
z h 900
z h 1000
40
v g
35
30
4 5 6 7 8
k
()
600
z h 800
z 900
500 h
z h 1000
400
300
200
100
4 5 6 7 8
k
()
Fig (2.1 a.b) The plot of the and against for
different values of for =02 =27 0 =5 0 =12 0 =10
12
= =10 = =1 =100
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