Get the complete solved exercise of Chapter 9 Nature of Science from 9th Class Physics for all Punjab Boards. Detailed solutions, explanations, and key concepts to help you excel in your studies. 9.1 Physics is a branch of: Options:(a) Social science(b) Life science(c) Physical science(d) Biological science Answer: (c) Physical science Explanation:Physics deals with matter, … Continue reading Solved Exercise of Chapter 9 Nature of Science – 9th Class Physics