The style quality and content of this book it is believed, will encourage the reader, especially the student whether above average, average or below average to learn the concept and answer the question in the subject without any tension. However, it is the reader who should confirm this and any comments and suggestions would be pleasantly received by the Academy.
Thanks to all professors who extended their valuable services in the subjects of this Volume.
It is believed that this Volume is a Valuable aid to the students appearing for competitive exams like ESE, DRDO, ISRO and Other PSUs.
With best wishes to all those who wish to go through the following pages.