Dual nature of light, applications in technology1. Introduction to Dual Nature of LightLight exhibits both wave and particle properties, known as the dual nature of light.Wave nature: Demonstrated by interference and diffraction.Particle nature:…
Photoelectric effect, photons, Planck’s hypothesis1. Wave-Particle DualityProposed to explain the dual nature of light and electromagnetic radiation.Light exhibits both wave-like and particle-like properties.Wave nature: Demonstrated by interference…
Properties and applications of each part of the spectrum1. Radio WavesLongest wavelength and lowest frequency in the spectrum.Used in radio broadcasting, television signals, and mobile communication.Essential for radar and GPS technology.2.
Types of electromagnetic waves: radio, microwave, infrared, visible, ultraviolet, X-rays, gamma rays1. Electromagnetic SpectrumThe electromagnetic spectrum consists of different types of electromagnetic waves arranged based on their wavelength and frequency.It includes radio waves, microwaves,…
Conductors, insulators, and semiconductors1. ConductorsConductors are materials that allow the easy flow of electric current.Their conductivity is due to the presence of free electrons.Examples include metals such as copper, aluminum, and…
Cathode ray tube and its applications (e.g., television)1. Introduction to Cathode RaysCathode rays are streams of electrons emitted from the cathode in a vacuum tube.They were first observed by J.J. Thomson, who identified them as negatively charged…