- 1(current)
Q. No.
1. \(D\)
2. \(A\)
3. \(B\)
4. \(C\)
The correct statement about the variation of viscosity of fluids with an increase in temperature is:
| 1. | viscosity of gases decreases. |
| 2. | viscosity of both liquids and gases increases. |
| 3. | viscosity of liquids increases. |
| 4. | viscosity of liquids decreases. |
The velocity of a small ball of mass \(M\) and density \(d\), when dropped in a container filled with glycerine becomes constant after some time. If the density of glycerine is \(d\over 2\) then the viscous force acting on the ball will be:
| 1. | \(\frac{3Mg}{2}\) | 2. | \(2Mg\) |
| 3. | \(\frac{Mg}{2}\) | 4. | \(Mg\) |
Two small spherical metal balls, having equal masses, are made from materials of densities \(\rho_1\) and \(\rho_2\) such that \(\rho_1=8\rho_2\)
| 1. | \(\frac{79}{72}\) | 2. | \(\frac{19}{36}\) |
| 3. | \(\frac{39}{72}\) | 4. | \(\frac{79}{36}\) |
- 1(current)
Q. No.
© 2024 GoodEd Technologies Pvt. Ltd.