The unit of dynamic viscosity of a fluid
Show Hint
- m\(^2\)/s
- Pa\(\cdot\)s/m\(^2\)
- N\(\cdot\)s/m\(^2\)
- kg\(\cdot\)s/m\(^2\)
The Correct Option is C
Solution and Explanation
Top Questions on Fluid Mechanics
- A drop of water of radius 0.0015 mm is falling in air. The coefficient of viscosity of air is \( 1.8 \times 10^5 \, \text{kgm}^{-1} \, \text{s}^{-1} \). If the density of the air is neglected, then what will be the terminal velocity of the drop?
- TS EAMCET - 2025
- Physics
- Fluid Mechanics
Consider the following statements:
A. Surface tension arises due to extra energy of the molecules at the interior as compared to the molecules at the surface of a liquid.
B. As the temperature of liquid rises, the coefficient of viscosity increases.
C. As the temperature of gas increases, the coefficient of viscosity increases.
D. The onset of turbulence is determined by Reynolds number.
E. In a steady flow, two streamlines never intersect.
Choose the correct answer from the options given below:- JEE Main - 2025
- Physics
- Fluid Mechanics
- A proton of mass 'mp' has same energy as that of a photon of wavelength 'λ'. If the proton is moving at non-relativistic speed, then ratio of its de Broglie wavelength to the wavelength of photon is.
- JEE Main - 2025
- Physics
- Fluid Mechanics
- A body of mass \( m \) connected to a massless and unstretchable string goes in a vertical circle of radius \( R \) under gravity \( g \). The other end of the string is fixed at the center of the circle. If velocity at the top of the circular path is \( v = \sqrt{ngR} \), where \( n \geq 1 \), then the ratio of kinetic energy of the body at bottom to that at top of the circle is:
- JEE Main - 2025
- Physics
- Fluid Mechanics
$\text{The fractional compression } \left( \frac{\Delta V}{V} \right) \text{ of water at the depth of } 2.5 \, \text{km below the sea level is } \_\_\_\_\_\_\_\_\_\_ \%. \text{ Given, the Bulk modulus of water } = 2 \times 10^9 \, \text{N m}^{-2}, \text{ density of water } = 10^3 \, \text{kg m}^{-3}, \text{ acceleration due to gravity } g = 10 \, \text{m s}^{-2}.$
- JEE Main - 2025
- Physics
- Fluid Mechanics
Questions Asked in AP PGECET exam
The rank of matrix \(\begin{bmatrix} k & -1 & 0 \\[0.3em] 0 & k & -1 \\[0.3em] -1 & 0 & k \end{bmatrix}\) is 2, for \( k = \)
- AP PGECET - 2024
- Rank of a Matrix
If \(A = \begin{bmatrix} 4 & 2 \\[0.3em] -3 & 3 \end{bmatrix}\), then \(A^{-1} =\)
- AP PGECET - 2024
- Inverse of a Matrix
A two-port network is defined by the relation
\(\text{I}_1 = 5V_1 + 3V_2 \)
\(\text{I}_2 = 2V_1 - 7V_2 \)
The value of \( Z_{12} \) is:- AP PGECET - 2024
- Two Port Networks
An induction motor when started on load does not accelerate up to full speed but runs at \({\frac {1}{17}}\)th of the rated speed. The motor is said to be:
- AP PGECET - 2024
- Induction Motor
A 0 to 30 V voltmeter has an error of \(\pm 2\%\) of FSD. What is the range of readings if the voltage is 30V?
- AP PGECET - 2024
- Errors in Measurement