Skip to main content

While reducing the diameter of pipe in its outlet does pressure increase or velocity?

Hey,
This post is for everyone.From childhood we have grown up seeing our parents giving water to plants using pipes.We all have tried our hands also in that.Now we have always heard that by reducing the pipe diameter by using our fingers blocking the outlet we can increase water pressure and water will go further distance.No doubt water will travel longer distance but in this case pressure is not increasing but velocity is.Dont get confused by the formula of pressure (F=M/A) as it is applicable for solids only.In case of liquids it will follow Bernoulli's  equation stating if area is decreased kinetic energy or velocity gradient will increase and pressure gradient will decrease.So now it should be clear to all.
Thanks....

Comments

Post a Comment

Popular posts from this blog

Sci-fi WH

Hey all,  Consider two points A and B separated at a distance of say 5 cm in a piece of paper. If you were to reach point B from A you need to cover 5cm distance. But what if you wrap the paper in such a way that point A and B intersect. Then it becomes a shortcut right. This is exactly the concept behind worm holes. Due to the fabric nature of space-time this can be assumed that we can enter from past to future and vice versa through these holes known as worm holes created due to rupture in space time fabric due to movement of celestial bodies including planets. Time is a man made straight dimension but in our universe time is not moving forward rather everything is happening at the moment. It is like a 3hrs Bollywood movie being watched in a DVD where the time period for movie or event is fixed and we can go backwards and forward. Similarly events occuring in universe are fixed and we can rewind or move ahead using worm holes.  This concept is hypothetical based on journals ...
Post a Comment
Read more

Twin Paradox

Hey there,  It's been long I haven't written anything but today I chose to pen-down something very close to my heart, the twin paradox. It was taught to us in 1st semester in physics under the topic special theory of relativity. The story is as under..  There were two twins A and B. They celebrated their birthday on same date every year. But on their 18th birthday A went for a space trip to rotate around a celestial object with a speed nearly 80% of light. He told his brother B that he would come back next year on their birthday when they would be celebrating their 19th birthday. He went for the trip with speed of 0.8c to space and took exactly 1year to return on earth. As he returned he found his brother B was 80 years old. Why this paradox took place? It's because earth revolved 62 years during this time as compared to A's spaceship which took only one year as it was travelling at very high speed. This is a time travel which can occur according to special theory of re...
Post a Comment
Read more

Importance of units

Hello all, Welcome back... In today's blog I am going to discuss about the importance of units.We are taught right from childhood that a physical quantity consists of two parts,one being magnitude and other being unit.To specify a physical unit we need both.For eg if someone asks you how much distance did you cover in today's morning walk?You might say 2km.Imagine if you would have said only 2,was it explainable.Answer is no.Similarly only saying km will also not be explainable.That is why both magnitude and units are important.Now this information you will get in primary textbooks also.But can you imagine its practical implications and its repercussions.Let me tell you a story. But before that I would like to emphasize on the importance of SI units.SI units are international standard units designed to maintain uniformity.Imagine what will happen if we neglect its importance.Now here comes a real life story. An aeroplane flew from its source towards it's destination,b...
Post a Comment
Read more