A thin uniform annular disc (see figure) of mass M has outer radius 4R and inner radius 3R. If the work required to take a unit mass from point P on its axis to infinity is 2GMnR(4√2−5), then n = (n is an integer)

A thin uniform annular disc (see figure) of mass M has outer radius 4R

1.	A thin uniform annular disc (see figure) of mass M has outer radius 4R and inner radius 3R. If the work required to take a unit mass from point P on its axis to infinity is 2GMnR(4√2−5), then n = (n is an integer)
Answer» A thin uniform annular disc (see figure) of mass $M$ has outer radius $4 R$ and inner radius $3 R$ . If the work required to take a unit mass from point P on its axis to infinity is $\frac{2 G M}{n R} (4 \sqrt{2} - 5)$ , then $n$ = ( $n$ is an integer)

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A thin uniform annular disc (see figure) of mass M has outer radius 4R and inner radius 3R. If the work required to take a unit mass from point P on its axis to infinity is 2GMnR(4√2−5), then n = (n is an integer)

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