PhysicsGutka

For SA 1. The question paper consists of two parts (both contain only multiple choice questions) for 100 marks. There will be four sections in Part I (each containing 15 questions) and four sections in Part II (each containing 5 questions). 2. All questions are compulsory. 3. In Part A - Each correct answer gets 1 mark and for each incorrect answer 0.25 mark will be deducted. 4. In Part B - Each correct answer gets 2 mark and for each incorrect answer 0.50 mark will be deducted.  Sl. No Subject Part I Part II 1Mathematics15 questions – 1 mark each5 questions – 2 marks each2Physics15 questions – 1 mark each5 questions – 2 marks each3Chemistry15 questions – 1 mark each5 questions – 2 marks each4Biology15 questions – 1 mark each5 questions – 2 marks each For SB +2 1.The question paper consists of two parts (Part A contains multiple choice questions and Part B contains descriptive type questions) for 100 marks. It consists of 80 qu...

Mostly I see confusion in trainee faculties and students about rotation motion and circular motion. Here you go In rotation the body's centre of mass does not undergo any translation motion. In other words the centre of mass will remain at on place. Like a top spinning on its axis. In circular motion the body's centre of mass goes around a fixed centre maintaining a constant distance from it. Which means the centre of mass is actually going through a translation motion. For example an ant sitting on the circumference of the spinning top in the above example.  Now to make matters clear. Look at a rotating fan.  The entire fan is not going anywhere and just spinning around its axle. That's rotation motion for the entire fan.  Now look at the blades of the fan. The centres of the blade are going around the axle but actually making a translation motion. Hence the blades are in circular motion.  I hope you got the difference.  If centre of mass is not moving ...