The exams are approaching, let’s plan our studies to excel

Now that portions of PlusTwoPhysics is over by more than 50% of the syllabus in most of the schools in India, it is time to start systematic revision so that the older portions are not forgotten while we study new topics. The 10 unit in Physics for CBSE Class XII are Electrostatics Current electricity Magnetic … Continue reading The exams are approaching, let’s plan our studies to excel

How was your Physics exam? CBSE Class 12

This year (2018) the Physics question paper was quite different. How did you feel? Was the questions easy? Please respond now Some Teachers' responses are given below: Some questions are from beyond the border. Lens mirron combination, toroid derivation, difrraction.... As an enthusiastic Physics Teacher, the Question Paper is standardized and of good quality. But, … Continue reading How was your Physics exam? CBSE Class 12

Physics – Foundations and Frontiers

Soumendra Nath Thakur asked Sir, I want to get a Physics book named, Physics – Foundations and Frontiers. by - George Gamow and J.M.Clearland. Pub. Tata Mcgraw Hill. So How much it would cost me and how can I buy it?   Click on the image to Buy Physics – Foundations and Frontiers. by - George … Continue reading Physics – Foundations and Frontiers

What is the use of lithium in hydrogen bomb?

Muhafiz asked  - "What is the use of lithium in hydrogen bomb?" Lithium is the nuclear fuel for fusion bomb. Please refer to the following links https://en.wikipedia.org/wiki/Thermonuclear_weapon http://www.atomicarchive.com/Fusion/Fusion2.shtml

How far an object should be placed from the pole of a concave mirror of focal length 20cm to form a real image whose size is 1/5 the size of the object.

The question was asked by jasleen Kaur Bhasin How far an object should be placed from the pole of a concave mirror of focal length 20 cm to form a real image whose size is 1/5 the size of the object? Can you answer this? Post the answers with necessary explanation a comment to this … Continue reading How far an object should be placed from the pole of a concave mirror of focal length 20cm to form a real image whose size is 1/5 the size of the object.

How was Physics exam?

Students and teachers report that this year's CBSE Physics exam was of a different kind and many questions were quite new. How did you feel? How was CBSE Physics exam 2017? Any genuine problem cited will help while finalising the marking scheme. So, report the problems which you faced. Students, teachers and parents can post … Continue reading How was Physics exam?

Change in length of rubber band on cooling

Some where i read that on cooling of rubber band it expands where as when heated it contracts . Why does it happen?Full description.please   Asked Bipin Kumar Answer The rubber band actually expands when it gets colder. This occurs because of the unusual polymer structure of rubber. When the long chains get hotter and vibrate, they … Continue reading Change in length of rubber band on cooling