Ifyoulined upTMV particles end to end how many would fit along the length of the same paperclip?

Ifyoulined upTMV particles end to end how many would fit along the length of the same paperclip?
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approx. 55.89um
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The ground surface slopes 1 in 50 along a proposed railway embankment 150 m in length. The height of the embankment at zero chainage is 0.5 m, the width is 11 m and side slopes 2:1. If the falling gradient of the embankment is 1 in 150, the quantity of the earthwork calculated by Prismoidal formula, is (A) 3250 m3 (B) 3225 m3 (C) 3275 m3 (D) 3300 m3

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