1.

Ifthe string length of n is wound on the exterior four walls of a cube of side a cm starting at point C and ending at point D exactly above C , making equally spaced 4 turns . The side of the cube is :

Answer»

a. `a=(2N )/(sqrt(255))`
B. `a =((n)^(2))/(16) `
c. `a=(n)/(sqrt(257))`
d. `a=2 sqrt(15) n`

Answer :C


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