A mosquito with 8 legs stands on water surface and each leg makes depression of radius a . If the surface tension and angle of contact are T and zero respectively ,then the weight of mosquito is

Question

A mosquito with 8 legs stands on water surface and each leg makes depression of radius a . If the surface tension and angle of contact are T and zero respectively ,then the weight of mosquito is, 8 T a, 16 π T a, T a 8, T a 16 π

MARKS App · Accepted Answer

Figure shows one of the legs of the mosquito landing upon the water surface. Therefore, T . 2 π a × 8 = W = weight of the mosquito. T . 16 π a = W

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