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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...
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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 ...
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Tricks and Tips to clear competitive exams.

Hii, It's been 8 years that I last appeared for AIEEE and PET.But I can share some tips from those exams about how to crack them and score maximum. 1.While talking about PCM Subjects,have full command in any two subjects. 2.While appearing for exam solve those sections first in which you have full command,then go for other questions. 3.If you are doubtful about certain questions,leave them. 4.If negative marking is not there attempat all questions and for the questions,you don't know the answer tick on same option.This will increase probability of getting correct answers.(for no negative marking questions) 5.As far as subjects are concerned,refer NCERT for chemistry.Most of the exams take questions from NCERT. 6. For physics HC Verma is best,then Pradeep and some foreign journals. 7.For mathematics,I practiced RD Sharma but again some foreign author books are required for getting good marks. 8.Always go through previous year questions and try to figure out pattern. 9...
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