**MM : 20 | Time : 1 Hour**

Q1. State Pascal’s law? (1)

Q2. Define coefficient of viscosity give it’s SI unit? (2)

Q3. What is terminal velocity? Derive

Q.4 Define the following terms a) Streamline Flow b) Critical Velocity. (2)

Q.5 State and prove Bernoulli’s theorem. (5)

Q.6 Derive an Express for the Excess Pressure inside the soap bubble. (2)

Q.7 Define Capillarity. Derive the ascent formula. (3)

Q.8 The excess pressure inside a soap bubble is thrice the excess pressure inside a second soap bubble. What is the ratio between the volume of the first and the second bubble? (2)