Dinesh Amarathunga is a renowned physicist and author from Sri Lanka, with a strong background in physics education. He has written several popular physics books that cater to students preparing for various competitive exams, such as the GCE A/L and university entrance exams.

Dinesh Amarathunga's physics books are highly regarded in Sri Lanka for their clear explanations, practice exercises, and exam-oriented approach. His books cover a wide range of topics in physics and are designed to help students prepare for various competitive exams. If you're a student or physics enthusiast looking for high-quality physics resources, Dinesh Amarathunga's books are definitely worth considering.