https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:sound-waves/x0e04e0cb682fb793:echos-and-reverberation/v/echoes-and-reverberations-ur 2025-08-08T00:24:37.843818748Z Echoes and reverberations Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Echoes and reverberations Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/bzaAq0LPq28.mp4/bzaAq0LPq28.mp4 537 Echos and Reverberation https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:sound-waves/x0e04e0cb682fb793:echos-and-reverberation/e/echo-and-reverberation 2026-03-12T00:50:35.110583553Z Echo and Reverberation Let's solve some questions! vibhor exercise https://www.khanacademy.org/science/cambridge-o-level-physics-cie/x0e04e0cb682fb793:sound-waves/x0e04e0cb682fb793:echos-and-reverberation/v/minimum-distance-for-echo-ur 2025-08-08T00:24:37.843818748Z Minimum distance for echo Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Minimum distance for echo Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/nadEP2vMLZU.mp4/nadEP2vMLZU.mp4 492 Echos and Reverberation