CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Water is flowing through a long horizontal tube. Let PA and PB be the pressures at two points A and B of the tube.


  1. PA must be equal to PB.

  2. PA must be greater than PB.

  3. PA must be smaller than PB.

  4. PA = PB only if the cross-sectional area at A and B are equal.


Solution

The correct option is D

PA = PB only if the cross-sectional area at A and B are equal.


Now if A1=A2 andh1=h2
V1=V2 A1V1=A2V2
Also,PA+,ρghA+12,ρ V2A=PB+,ρghB+12,ρV2BPA=PB
So if the cross-sectional area at A and B are equal
PA=PB Hence (d)

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
QuestionImage
QuestionImage
View More...


People also searched for
QuestionImage
QuestionImage
View More...



footer-image