IDNLearn.com provides a collaborative environment for finding accurate answers. Discover the reliable solutions you need with help from our comprehensive and accurate Q&A platform.

A jet of water discharging from a 40 mm diameter orifice has minimum area corresponding to dia of 24.4 mm at its vena cotracta. The coefficient of contraction is?

a. 0.46
b. 0.37
c. 0.78
d. 0.87