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This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What will be the terminal velocity of a rain drop of radius (r) 1mm and mass (M) 0.001g falling through air. The coefficient of viscosity of air (η) is 1.8 X 10-5Ns/m2? Neglect buoyant force. |
| A. | 20 m/s |
| B. | 29.47 m/s |
| C. | 35.8 m/s |
| D. | 40 m/s |
| Answer» C. 35.8 m/s | |
| 2. |
Coefficient of viscosity doesn’t depend on temperature because it is a property of the fluid. True or False? |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
1 poise = _________ Ns/m2. Fill in the blanks. |
| A. | 0.01 |
| B. | 0.1 |
| C. | 1 |
| D. | 10 |
| Answer» C. 1 | |