In this post, we shall discuss about ‘Mechanical Properties of Matter’ as a topic for preparation of JEE Advanced and JEE Mains. The important topics shall be discussed as well.
Observing the question papers of the last few years, it has been noted that 1-2 questions are asked every year from Mechanical properties of matter. 2 questions from the topic were asked in each of the past 3 years in JEE Mains, and as many as 3 questions were asked in JEE Advanced 2010. So going by the recent trends, it is an important topic for preparation and cannot be overlooked. As it holds a wide variety of topics and complex numerical values, it is one of those chapters that demand an extra effort, but if one is looking to score maximum marks, it cannot be skipped.
What makes this chapter tricky is the wide variety of questions that can be asked.
The most important topic in Mechanical Properties of matter is Young’s modulus and problems are asked related to its Basic formula !!Y=(Fl)/(Ae)=(4Fl)/(piD^2Deltal)!!. Various dimensions will be given, and ratios between quantities like Elongation, Elasticity will be asked.
Another major kind is the one related to surface tension, in which questions are asked related to capillary rise and pressure inside a fluid bubble or soap bubble.
Generally, this chapter is clubbed with some other concepts like Error Analysis, Electrostatics and Harmonic Motion for a problem to be framed. Questions related to Error Analysis have been asked 3 times in the last 7 years in JEE Advanced.
So, though a tricky chapter to counter, it is important in the overall preparation.