In the experiment for measurement of viscosity ' η ' of given liquid with a ball having radius R , consider following statements. A. Graph between terminal velocity V and R will be a parabol

Question

In the experiment for measurement of viscosity ' η ' of given liquid with a ball having radius R , consider following statements. A. Graph between terminal velocity V and R will be a parabola. B. The terminal velocities of different diameter balls are constant for a given liquid. C. Measurement of terminal velocity is dependent on the temperature. D. This experiment can be utilized to assess the density of a given liquid. E. If balls are dropped with some initial speed, the value of η will change. Choose the correct answer from the options given below:

TestHub · Accepted Answer

The terminal velocity of ball of radius R inside a liquid of viscosity η can be written as V T ​ = n 2 R 2 g ​ ( σ − ρ ) , where σ is the density of ball and δ is the density of the liquid. Hence, A is correct since V T ​ ∝ R 2 gives a parabola on a graph C is correct since V T ​ α η 1 ​ and η varies with temperature D is correct since V T ​ α ( σ − ρ ) i.e., varies with density of liquid.

Physics - Fluid Question with Solution | TestHub

Options:

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