Water flows smoothly through a pipe with various circular cross-sections of diameters 2D, 6D, and D`, respectively.a.) What is the ratio of the speed in section 3 to the speed in section 1? V3/V1= b.) In which section is the pressure largest? Choose the best answer. a.) They are the sameb.) Section 1c.) Section 2d.) Section 3 The image shows a diagram of a conduit or duct system with varying cross-sections. Here's a detailed description:- The diagram is in the shape of a flow path with three main segments: - Segment 1: This is the entry section on the left-hand side with a width labeled as "1". - Segment 2: The middle section expands to a wider section with a width labeled "2" and has a total vertical height labeled "2D". The horizontal length is labeled "6D". - Segment 3: The exit section on the right-hand side narrows back down with a width labeled as "3", equivalent to "D".- Transverse dimensions are indicated with the labels: - At the narrow segment on the left, the height is labeled as "2D". - At the narrow segment on the right, the height is labeled as "D".This type of diagram is commonly used in fluid dynamics or airflow studies, illustrating how duct sizes change over the flow path.

Ans Now apply the continuity equation at pipe 1 and 2 as Again apply the continuity equation at pipe 2 and 3 asNow multiply the eq.(1) by eq.(2) as Hence, the ratio of the speed in section 3 to the speed in section 1 is Now we know that the pressure of flows is inversely proportional to the speed of the flow so,But according to the equation of continuity we have, Therefore, larger the area of pipe, the smaller will be the speed of flows.Hence, in above three pipes, speed is smallest in section 2. Therefore, the pressure is largest in section 2.Ans(a) The ratio of the speed in section 3 to the speed in section 1 is (b) The pressure is largest in section 2.