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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:
- (1) B, D and E only
- (2) A, C and D only
- (3) C, D and E only
- (4) A, B and E only
Correct answer: (2) A, C and D only
Solution
The correct option is right because the relationship between terminal velocity and radius is quadratic (A), the terminal velocity is influenced by temperature (C), and the experiment can indeed be used to determine the density of the liquid (D). These statements accurately reflect the principles governing viscosity measurements.
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