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Since both sound waves travel the same round-trip distance, speed is inversely proportional to time. Taking the ratio of time taken gives the speed ratio of air to water as 1:4.5 or 2:9. Class 9 Science Exploration Chapter 10 Important Questions ...

class 9 science exploration chapter 10 sound waves (new book)class 9 science exploration chapter 10 sound waves solutionsidentical sound sources are placed at a and bif the time taken by the sound to return to a is 4.5 timesratio between the speeds of sound in air and watersound waves: characteristics and applications question answer
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The total round-trip distance is 2.4 meters. Dividing this distance by the speed of 345 meters per second gives approximately 0.00696 seconds or nearly 6.96 milliseconds, for the wave to return. Class 9 Science Chapter 10 Sound Waves Characteristics and Applications ...

class 9 science exploration sound waves solutions with pdfsound waves: characteristics and applications question answerthe speed of ultrasonic wave in air to be 345 m s⁻¹vehicle is fitted with an ultrasonic distance sensorwarning beep starts sounding at a distance of 1.2 m from the obstacle
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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 ...

class 9 science exploration chapter 10 sound waves (new book)class 9 science exploration chapter 10 sound waves solutionsgraph to represent a sound wave for which the density amplitude is 3 unitssound waves: characteristics and applications question answerwavelength is 4 cm
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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 ...

20 compressions pass a pointclass 9 science exploration sound waves solutions with pdfsound waves: characteristics and applications question answerthe frequency is