IN PHYSICS I OFTEN GET STRUCK OF A QUESTION OF NOT A SINGLE TEACHER OR MY FRIENDS COULD ANSWER ME THE QUESTION IS THAT “IF SPEED OF LIGHT IS 3 x 108 METRE PER SEC, THAN WHAT IS THE SPEED OF DARKNESS????….” Asked Taoqeer Nezam Related articles Cosmological Mysteries Needing Answers(gregbentall.com)
Can you see your image when you are travelling at the speed of light? Visitors and students are requested to respond and answer via comments. Einstein’s Theory of relativity says:”The Laws of Physics are the same in any Inertial Frame of Reference.”
A stone tied to a string of length l is whirled around a vertical circle with the other end of the string at the centre. At a certain instant of time the stone is at the lowest position and has a speed u. What is the magnitude of change in its velocity as it reaches…… Continue reading Motion in a vertical circle and conservation of energy
These problems were posted by Geena. Hope that we will be able to post the answers to these questions soon; each in a separate post. By the time visitors can attempt to post their answers as comments to this post. (Only selected posts will be published)
Please note that the answers are not published until the […]
We have received hundreds of questions on the above subject. As the questions continue to pour in, we found it necessary to create a post on it.
IIT JEE is an entrance exam of international repute and IITs are considered at par with MIT by many. So, if you are an IIT aspirant, it is very […]
What is the reason for proton- proton attraction inside the nucleus according to nuclear physics? (Sanjeev Asked) Answer: Inside the nucleus where the nucleons are very close to each other, the force which holds them together is the nuclear force, which is the strongest force in nature. The electrostatic force between protons is negligibly small…… Continue reading Why protons attract inside a nucleus?
Mohak Tandon Asks – “
“Is the acceleration due to gravity different in south pole and north pole?”
As per theory, acceleration due to gravity changes with altitude, depth and latitude.
If we consider that the variation of g with latitude is caused by rotation of earth only, then the value of g will be same for both […]