B: 3.31 cm
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What is the correct unit for the quantity shown?
A student collects stones and finds their density. Which apparatus is needed to measure the mass and the volume of th…
A manufacturer measures accurately the dimensions of a wooden floor tile. The approximate dimensions of the tile are …
A student finds the centre of mass of a triangular lamina PQR. He drills a small hole at Q. He suspends the lamina fr…
The same downward force is applied to four objects resting on a horizontal surface. Which exerts the greatest pressur…
Four identical measuring cylinders contain liquid. Two contain water of density 1000 kg/m³. Two contain paraffin of d…