A man standing between two parallel hills dap his hand and

Last updated: 6/9/2023

A man standing between two parallel hills dap his hand and hears successive echoes at repl intervals of 1 s If velocity of sound is 340 ms the distance between the hills is a 100 m c 510 m b 170 m d 340 m d 4L and 58 The transves as both end y x t