Home/ Questions/Q 552367
Next
In Process
Kriti
  • 1
Asked: 2026-10-14T05:54:02+00:00 In:

In a room, the reflected sound reaches the ear 0.05 s after its production. Will it produce an echo or reverberation? Justify your answer.

  • 1

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 Sound Waves Question Answer

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
Share

    1 Answer

    1. It will produce reverberation rather than an echo. Human hearing requires a minimum time gap of 0.1 seconds between original and reflected sounds to perceive a distinct echo. Because the reflected sound arrives in only 0.05 seconds, the brain cannot separate the two sounds. Instead, the multiple reflections blend together, causing the sound to persist as reverberation.

       

      For more NCERT Solutions of Class 9 Science Exploration Chapter 10 Sound Waves Characteristics and Applications Question Answer (2026-27)

      https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-10/

      • 3
    Leave an answer

    Leave an answer

    Browse