Wht is modern physics ?

Modern physics is a branch of physics that encompasses various theories, concepts, and phenomena beyond classical physics, which primarily deals with the laws of motion and gravity. It includes theories and principles such as quantum mechanics, relativity, particle physics, cosmology, and the study of fundamental forces and particles. It seeks to explain the behavior of matter and energy on both the microscopic and macroscopic scales, and has led to significant technological advancements and understanding of the universe.

Modern physics is a branch of physics that emerged in the 20th century and focuses on understanding the fundamental aspects of the physical world. It encompasses various fields, including quantum mechanics, relativity theory, particle physics, and cosmology. Modern physics aims to explain the behavior of matter and energy at the atomic and subatomic levels, where classical physics principles break down. It has revolutionized our understanding of nature and has led to technological advancements such as lasers, advanced materials, and nuclear energy.