diff --git a/sound.md b/sound.md new file mode 100644 index 0000000..d41f641 --- /dev/null +++ b/sound.md @@ -0,0 +1,30 @@ +# Sound +• **Wave transfers energy not matter** +The movement of the disturbance through a medium due to repeated periodic motion of particles about their mean positions is known as a wave. + + + + + + + + + +
Types of Waves
+ i. Mechanical Wave +
+ MECHANICAL WAVE - *Periodic* disturbance which *requires material medium* (i.e. solid, liquid or gas) *for its propagation*. + These waves are characterized by the motion of the particles of a medium. + These waves have well defined characteristics. + 		+ ii. Electromagnetic Wave +
+ Electromagnetic waves are a type of wave that can travel through the vacuum of space + i.e they *don't require a material medium for propagation*. + They are created by the *vibration of electric charges* and consist of *oscillating electric and magnetic fields* that are *perpendicular* to each other and to the direction of the wave's travel. + 		+ iii. Matter Wave + In quantum mechanics, particles such as electrons and photons exhibit both wave-like and particle-like properties—a concept known as wave-particle duality. Matter waves refer to the wave aspect of this duality. +
Matter Waves - Remark - Just as light can behave like both waves and individual particles, matter (ex. electrons) can also exhibit wave like behaviour under certain coditions. + Physicist Louis de Broglie introduced the idea in 1924 that particles have their associated wavelengths. +
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