Electromagnetic Waves and Communication System
Description: An electromagnetic wave is a wave composed of oscillating electric and magnetic fields perpendicular to each other and to the direction of propagation.
Description: Electromagnetic waves: transverse, oscillating electric and magnetic fields, travel at speed of light, described by Maxwell's equations and electromagnetic spectrum.
Description: Electromagnetic spectrum: range of all electromagnetic waves, from radio waves to gamma rays, differing in frequency, wavelength, and energy.
Description: Radio waves: low-frequency, long-wavelength electromagnetic radiation used in telecommunications, broadcasting, and radar, with wavelengths ranging from meters to kilometers.
Description: Microwaves: higher frequency, shorter wavelength electromagnetic radiation with wavelengths ranging from centimeters to millimeters. While Infrared: electromagnetic radiation with wavelengths longer than visible light, sensed as heat,
Description: UV (Ultraviolet): electromagnetic radiation with shorter wavelengths than visible light. X-rays: high-energy electromagnetic radiation with wavelengths shorter than UV.
Description: Gamma rays: high-energy electromagnetic radiation emitted by radioactive decay, nuclear reactions, and cosmic sources. Sky waves: radio waves reflected by ionosphere.
Description: Propagation of waves involves the transfer of energy through a medium or vacuum, characterized by oscillations and varying wavelengths.
Description: Modulation alters a carrier wave's properties to encode information for transmission. Types include amplitude, frequency, and phase modulation techniques.
Description: modulated signal combines a carrier wave with a varying signal to convey information, crucial in telecommunications for efficient transmission.
Board: State Board
Stream: Science
Standard: XI
Course: Physics
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Board: State Board
Stream: Science
Standard: XI
Course: Physics
Know More
Board: State Board
Stream: Science
Standard: XI
Course: Physics
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Board: CBSE
Stream: Science
Standard: XII
Course: Physics
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Board: State Board
Stream: Science
Standard: XII
Course: Physics
Know More
Board: CBSE
Stream: Science
Standard: XII
Course: Physics
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Board: State Board
Stream: Science
Standard: XII
Course: Physics
Know More