Study Chapter Details
UP Board Class 12 Physics – Dual Nature of Radiation and Matter
The chapter Dual Nature of Radiation and Matter explains one of the most important concepts of modern physics. It highlights how light and particles like electrons show both wave-like and particle-like behavior. Students learn about the photoelectric effect, where light ejects electrons from a metal surface, proving that light behaves as packets of energy called photons. The chapter also introduces Einstein’s photoelectric equation, which helps calculate threshold frequency, stopping potential, and kinetic energy of emitted electrons.
Additionally, the lesson covers de Broglie wavelength, which shows that matter particles such as electrons also exhibit wave nature. This concept forms the basis of electron microscopes and quantum mechanics. By studying this chapter, UP Board Class 12 students build a strong foundation for exams and develop a deeper understanding of the microscopic world and modern scientific advancements.
