A) 0.25
B) 0.5
C) 0.433
D) 0.125
Correct Answer: C
Solution :
\[P\,\,=\,\,p\frac{\cos {{\alpha }_{1}}}{2}\,\,=\,\,\frac{\cos 30{}^\circ }{2}\,\,=\,\,0.433\]
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