Home › Courses › ICSE Class 9 › Physics › Propagation of Sound WavesICSE Class 9 Propagation of Sound Waves — practice questions Explore 1 free Propagation of Sound Waves questions in ICSE Class 9 Physics. Open each question or exercise to read its content, reference answers and available explanation.
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Worked practice questions Judge these claims about sound waves Read exercise and reference answers Questions Statement is true Yes Statement Sound is a longitudinal wave. Statement is true No Statement Sound can travel through vacuum. Statement is true Yes Statement Speed of sound in air is roughly 343 m/s at room temperature. Statement is true Yes Statement Audible range for humans is roughly 20 Hz to 20 kHz. Statement is true No Statement Echo occurs when reflected sound returns within 0.05 s. Instructions Tap true or false for each line on how sound travels and what ears can pick up. Open this exercise →
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