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Consider a cylinder of height h cm and radius r = 2 π cm, as shown in the figure (not drawn to scale). A string of a certain length, when bound on its cylindrical surface starting at point A and ending at point B, gives a maximum of n turns (in other words, the string's length is the minimum length required to wind n turns). What is the vertical spacing in cm between the two consecutive turns?

 
h/n
h/ n
h/n2
nh

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Really a joker in life so just be
a saint in your dreams

How can you allow such questions to be posted?!! Pts. A and B are not at all defined in the question.. the answer ASSUMES them to be the end points of the cylinder!