In the formula V = 1/(2r)^4, if r is halved, then V is multiplied by?  Select the correct option:
A) 16 B) 8 C) 1 D) 1/8 E) 1/64
Say r=2 =&gt; V1 = 1/256   when r=1; V2 = 1/16   V2 = 16*V1.   16nswer : 16
<result>A</result>
In the formula V = 1/(2r)^4, if r is halved, then V is multiplied by?