Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is
A. less than d
B. between d and 1.5 d
C. between 1.5 d and 2d
D. greater than 2d
Answer:A
Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is
A. less than d B. between d and 1.5 d C. between 1.5 d and 2d D. greater than 2d