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Diffraction is phenomena that occurs when a wave encounters an obstacle. This happens when a wave reaches an obstacle that is comparable in size to it.
faster than the wave it produces
diffraction
wavelength
when the barrier or opening is the same size or smaller than the wave length. you're welcome!
Diffraction is phenomena that occurs when a wave encounters an obstacle. This happens when a wave reaches an obstacle that is comparable in size to it.
faster than the wave it produces
diffraction
wavelength
it bends and spreads out
when the barrier or opening is the same size or smaller than the wave length. you're welcome!
Huygen's Principle tells us that, at each point that a propagating wave reaches, a spherical wave emanates outwards from that point. When we're looking at a plane wave propagating (without a collision), the spherical emanations from each point on the wave front cancel out in all but the forward propagation direction, which is why a plane wave continues to travel as a plane wave. When a wave strikes a barrier with a tiny opening in it, on the other side of the opening you can expect to see waves propagating outward radially from the opening. When the opening is wider, the spherical waves coming from the points towards the center of the opening nearly cancel out, but at the edges of the opening there isn't anything to cancel out with, so if you're not in line with the opening (as in, if you look at the nearest point in the opening, your line of sight is not perpendicular to the original wavefront), you will see the wavefront coming radially from the opening edge nearest you. The closer you are (angularly) to being in front of the opening, the more plane-like the wave will be. It is because of this same diffraction that we see an interference pattern when there are two small openings in the barrier. In this case, the radial waves will constructively and destructively interfere at different points beyond the barrier.
interfere with each other
Bends and spreads out.When waves of any kind, sound, light electromagnetic radiation hit a gap in a barrier that is on the same scale as the wavelength then diffraction will occur. Diffraction is the bending of the wave and this appears as circular waves when we observe this effect with water.A common diffraction grating can be seen on a CD or DVD. The light spreads and we see this as different colours.
its called a reflected wave because just like a reflection the wave bounces back of the barrier
Diffraction. Bending of light/sound as it moves from one medium to another - Refraction.
Yes when something moves fatser than the speed of sound (or breaks the sound barrier) it makes a shock wave which unleashes an enormous amount of energy which comes in the form of a sonic boom. Hope this helps! :D