There is a long chain containing infinite link. \( \mathrm{P} \) If...

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There is a long chain containing infinite link.
\( \mathrm{P} \)
If mass of links of chain is \( M, \frac{M}{2}, \frac{M}{4}, \frac{M}{8} \ldots \ldots . \).
W then the net force on third link is :-
(1) \( 2 \mathrm{~F} \)
(2) \( \frac{F}{2} \)
(3) \( \frac{F}{4} \)
(4) \( \frac{F}{8} \)
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