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JEE MAIN 2025
28-01-2025 SHIFT-1
Question
In the experiment for measurement of viscosity '$\eta$' 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 $\eta$ will change.
Choose the correct answer from the options given below:
Select the correct option:
A
A, C and D Only
B
B, D and E Only
C
C, D and E Only
D
A, B and E Only
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
${V_T} = \frac{2}{9}{R^2}\frac{g}{\eta }\left( {d - \rho } \right)$
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