This book contains three articles mainly in Physics. The first article contains introductory information about Muon, a particle which is generated in cosmic ray shower and available on the ground level. The second article is based on the Black Hole. In this article a very basic introduction to Black Holes including its types is given. The third article is a general science article in which you will get to know whether the theoretical physics is converging to an end or not. Hope you will like these articles.