A loaded test tube may float upright in water due to the buoyant force acting on it. When an object is placed in water, it displaces a certain volume of water equal to its own volume. The buoyant force exerted by the water is equal to the weight of the water displaced by the object, pushing it upwards.
If the weight of the object is less than the weight of the water it displaces, the object will float. In the case of a loaded test tube, the weight of the test tube and its contents is balanced by the buoyant force, causing it to float upright in the water. Additionally, the shape of the test tube may also affect its ability to float upright, as a cylindrical shape tends to be more stable and less likely to tip over in water.
Why loaded testtube float upright in water
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