Relative velocity in free fall

If a person jumps out of a plane, and a few seconds later, another person jumps, why is it that the difference in their velocities stays the same? Shouldn’t it decrease because eventually, the first diver will reach maximum velocity, but the other diver will be slower at first, but then he reaches max. velocity [...]

How to excel in Green Olympiad?

Green Olympiad is and exam conducted by TERI (The Energy and Resources Institute) to sensitize school children (Classes 8, 9 and 10) on environmental issues. Thousands of schools from India and abroad participate in this Olympiad. The paper consists of 100 multiple choice questions. Each question deals with one environmental issue or the other. The … Continue reading How to excel in Green Olympiad?

Accelerated Motion and Gravity Equivalence

It seems a principal of Einstein’s General Theory of Relativity that there is an equivalence between accelerated motion and being in a gravitational field.  It seems that an observer would have no way to tell the difference between these two states.  However, the gravitational force being mediated by elementary force carrying particles (gluons I think), [...]

What Type of questions are asked in Viva Voce?

The methodology of questioning varies from examiner to examiner. The normal way of questioning is to start from the experiment you are alloted. Example: What experiment are you doing? Ans: To determine the value of unknown resistance using metre bridge...

Download AISSCE 2011 Sample Papers for Class XII CBSE

Practising sample papers, model papers and previous question papers is the easiest and fool proof way of scoring big in exams. Here you can find the sample papers published by CBSE for candidates for AISSCE 2011 Physics - Paper-I |   Paper-II |   Paper-III

Physics Online project submission Experiment

Students of Kendriya Vidyalaya Pattom created their first Online Physics Project blog at The teachers found this an effective way of submission and evaluation of data collection projects, which help the students getting trained in effect online content writing and blogging as well as the subject topic of interest. The students submitted their projects … Continue reading Physics Online project submission Experiment

Avoiding Peer Pressure in exam (Preparation) Time

Peer pressure influences your exam pressure. Avoid it as much as possible. The best way is to plan your lesson well. Don't worry what your friends are doing. Plan your work and avoid excessive anxiety. Do not deviate from your set plan when your friends say "this is important or that is sure to come" … Continue reading Avoiding Peer Pressure in exam (Preparation) Time