-- Diffraction occurs when waves interact with a gap.
-- Diffraction occurs in either type of wave—mechanical or electromagnetic.
Diffraction occurs when waves interact with a gap.
Diffraction occurs in any type of wave—mechanical or electromagnetic.
The phenomenon of light to bend around a small obstruction in its path is known as diffraction. Diffraction occurs for any type of waves- transverse or longitudinal i.e. for mechanical or electromagnetic waves.
When the medium changes- refraction occurs. Waves reflect back from a barrier. Diffraction occurs when the wavelength of the wave is comparable to the size of the gap. The wave bends around the corners of the gap.
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Apply this to waves: count the number of waves passing each second (= frequency), and multiply by the length of each (= wavelength) to find the speed. speed = distance/time = l/T= l / (1/f) = f λ. Work through three examples: A simple example, perhaps for sound in air, with values in Hz and m.
Explanation:Apply this to waves: count the number of waves passing each second (= frequency), and multiply by the length of each (= wavelength) to find the speed. speed = distance/time = l/T= l / (1/f) = f λ. Work through three examples: A simple example, perhaps for sound in air, with values in Hz and m.
Amplitude is the fluctuation or displacement of a wave from its mean value. With sound waves, it is the extent to which air particles are displaced, and this amplitude of sound or sound amplitude is experienced as the loudness of sound
But it seems that in some circumstances, sound can jump between objects in a vacuum after all. Sound waves are travelling vibrations of particles in media such as air, water or metal. So it stands to reason that they cannot travel through empty space, where there are no atoms or molecules to vibrate.
Constructive interference occurs when the crest of one wave meets the crest of another wave and hence, a higher amplitude wave is formed.
According to the superposition principle, a constructive interference occurs when more than two waves of same kind meets at the same points, then the resultant wave amplitudes are equal to vector sums of the amplitude of all the individual waves.
When crest of a wave meets the crests of another wave, or likewise, the trough or a wave meets the trough of other wave, a higher amplitude wave is formed which is known as a constructive wave. And, when a crest of a wave reaches the trough, a lower amplitude wave is formed which is known as destructive wave.
Constructive interference occurs whenever waves come together so that they are in phase with each other. This means that their oscillations at a given point are in the same direction, the resulting amplitude at that point being much larger than the amplitude of an individual wave.
Explanation: your answer should be C i guess.
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