Plot distance on the horizontal axis and density on the vertical axis, drawing sinusoidal oscillations that peak 3 units above and below average density, repeating every 4 cm along distance. CBSE Class 9 Science Chapter 10 Sound Waves Characteristics and Applications ...
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The green curve with the shortest wavelength represents source A, the red curve with intermediate spacing represents source B and the blue curve with the longest wavelength represents source C. Class 9 Science Chapter 10 Sound Waves Characteristics and Applications Solutions
Wave (a) has the greater wavelength because its consecutive crests are spaced farther apart along the distance axis and it also possesses the smaller amplitude due to lower vertical crest height. Class 9 Science Exploration Chapter 10 Important Questions from Sound ...
It produces reverberation. An echo requires a minimum delay of 0.1 seconds to be perceived distinctly, whereas reflections arriving within 0.05 seconds persist and blend into reverberation. Class 9 Science Exploration New Book All Chapter Solution Revise, Reflect, Refine Chapter 10 ...
The correct option is (ii). Frequency equals total oscillations divided by time taken. Dividing 20 compressions by 4 seconds yields 5 oscillations per second, which equals 5 Hz. Chapter 10 Sound Waves Characteristics and Applications Solutions Sound Waves Characteristics and Applications ...