Diffraction of Waves (HSC SSCE Physics): Flashcards
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Practise the cards
10 cards from this deck
Diffraction
Diffraction
Spreading of waves beyond a gap/obstacle into space beyond
Ratio determining diffraction amount
Ratio determining diffraction amount
(wavelength to opening width)
Effect of smaller opening on diffraction
Effect of smaller opening on diffraction
Greater diffraction occurs
Effect of longer wavelength on diffraction
Effect of longer wavelength on diffraction
Greater diffraction occurs
High frequency sounds & diffraction
High frequency sounds & diffraction
Short wavelengths, less diffraction, more directional
Low frequency sounds & diffraction
Low frequency sounds & diffraction
Long wavelengths, greater diffraction, spread more
Properties unchanged during diffraction
Properties unchanged during diffraction
Speed, wavelength, frequency
Why bass sounds travel through buildings easily
Why bass sounds travel through buildings easily
Long wavelengths diffract more through doorways/corners
Echolocation
Echolocation
Navigation using high-freq sound echoes (bats, dolphins)
Min object size detectable via echolocation
Min object size detectable via echolocation
Equals the wavelength used