Reflection, Diffraction and Resonance of Sound Waves (HSC SSCE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which type of surface acts as an excellent reflector of sound?
Which type of surface acts as an excellent reflector of sound?
Smooth, hard surfaces
What is reverberation?
What is reverberation?
Sound prolonged by quick reflection
What is the maximum distance for reverberation to occur?
What is the maximum distance for reverberation to occur?
17 metres
What is the minimum time needed to distinguish two sounds as separate?
What is the minimum time needed to distinguish two sounds as separate?
0.1 seconds
When does an echo occur?
When does an echo occur?
Surface > 17 m away
What is diffraction of sound?
What is diffraction of sound?
Spreading through openings/obstacles
Which wavelengths diffract more through the same opening?
Which wavelengths diffract more through the same opening?
Longer wavelengths
Using , what is for 100 Hz sound in air ( m/s)?
Using , what is for 100 Hz sound in air ( m/s)?
3.4 m
What is the wavelength of a 5 kHz sound in air ( m/s)?
What is the wavelength of a 5 kHz sound in air ( m/s)?
68 mm
Why are bass sounds heard better from adjacent rooms than treble sounds?
Why are bass sounds heard better from adjacent rooms than treble sounds?
Bass wavelength matches doorway size