In the formula V = 1/(2r)^2, if r is halved, then V is multiplied by	Choose one
A) 2	B) 8	C) 1	D) 1/8	E) 1/64
Say r=2 =&gt; V1 = 1/16   when r=1; V2 = 1/4   V2 = 2*V1.   2nswer=2=2
<result>A</result>
In the formula V = 1/(2r)^2, if r is halved, then V is multiplied by