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Sound takes 5.0 seconds at 22 °C and approximately 5.196 seconds at 0 °C to cover 1720 meters. Subtracting these values reveals an extra transit time of roughly 0.20 seconds. CBSE Class 9 Science Chapter 10 Sound Waves Characteristics and Applications ...

if the air temperature changes from 22 °c to 0 °cncert class 9 science exploration chapter 10 sqpnearly 344 m s⁻¹ at 22 °crefine chapter 10 question answerreflectrevisescience exploration cbse class 9 chapter 10 solutionsspeed of sound in air is about 331 m s⁻¹ at 0 °c
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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 ...

ncert class 9 science exploration chapter 10 sqprefine chapter 10 question answerreflectreflected sound reaches the ear 0.05 srevisescience exploration cbse class 9 chapter 10 solutionswill it produce an echo or reverberation