Harry standing 440m away from a wall fired a gun and heard its echo 2s after.How is an echo formed?calculate the velocity of sound in air?
Share
Harry standing 440m away from a wall fired a gun and heard its echo 2s after.How is an echo formed?calculate the velocity of sound in air?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Verified answer
Distance covered by sound=2 x 440 =880 mtime taken to covered 880 m is =2sec
so , speed of sound=880/2=440m/sec
Starting point = 440m away from wall
Distance covered = Starting point X echo
Time taken = 2sec
So, the speed of sound is