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Draw a neat and labelled disgram of the hydrometer for heavier liquids and answer the following questions.

1. Why is its gravity bulb made heavier?

2. Why is its buoyancy bulb made smaller?

3. Why is its stem marked from bottom upward?

4. Why is it not suitable for measuring densities of lighter liquids?

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert
Answer:

 

1. Its gravity bulb is made heavier, so that, it continues floating in an upright position, even in the denser liquids.

2. Its buoyancy bulb is made smaller, so that it does not provide more upthrust in the denser liquids, and hence continues floating in an upright position.

3. It is because, the lightest density is that of water, when most of its stem is under water.  Thus, heavier densities are marked below the density of water, as lesser length of stem is immersed in the denser liquids.

4.  It is because, it sinks in higher liquids as its buoyancy bulb cannot provide necessary upthrust.

 

Answered by Expert 4th June 2014, 3:23 PM
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