A bat emits a sound wave at a speed of 1650.0ms-1 and receives the echoes…

Physics WAEC 1990

A bat emits a sound wave at a speed of 1650.0ms-1 and receives the echoes 0.15s later. Calculate the distance of the bat from the reflector

  • 8.75m
  • 16.50m
  • 87.75m
  • 123.75m checkmark
  • 330.00m

The correct answer is: D

Explanation

Distance x = vt/2 =
1650 x 0.15/2
= 123.75m
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