This is the new book of class 9 physics published by pctb or punjab curriculum and textbook board lahore for all punjab boards and chapter 9 is about nature of science and this video explains scope of physics, branches of physics like mechanics, heat and thermodynamics, aoustics, optics, electromegnatism, Quantum mechanics, relative mechanics, nuclear physics, particle physics astronomy and cosmology.
#9thphysicsnew #9thpphysics
