The sound from a source travelled to the bottom of the sea and the echo was heard 4s later. If the speed of sound in sea water is 1500ms-1 the depth of the ...

Assessment: JAMB UTME - Physics - 1994 Subject: Physics

Question 1 Report

The sound from a source travelled to the bottom of the sea and the echo was heard 4s later. If the speed of sound in sea water is 1500ms-1 the depth of the sea is
Answer Details
t = 4s ; v = 150ms-1

depth = X ; but 2X = vt

X =  v t 2  =  1500 × 4 2

X = 3000m

Read lesson note on Current Electricity (JAMB)
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