ICSE Class 6 Answered

A fluid's viscosity is the measure of its resistance, i.e., Water has a very low viscosity, while honey has a very high viscosity, affecting its flow.

Similarly, when an object is dropped in such fluids, the time it takes for the object to pass through the fluids varies with its viscosity.

In the given case, the viscosity of mustard oil will be greater than that of refined oil, and the viscosity of refined oil will be greater than that of water. As a result, the object will move through water faster than mustard oil.

For this activity, we must keep in mind that certain factors, such as temperature and pressure, can influence the time it takes for an object to pass through each fluid.

As a result, it is recommended that this experiment be carried out in real time, and that readings be taken multiple times to avoid errors.

I hope this answers your question.