1.

A stone is dropped in a well of depth 500 m and a sound is heard after 45/4 seconds. Then speed of sound is (if g= 10 m/s): x* 100 m/s. Find the value of x.

Answer»


A stone is dropped in a well of depth 500 m and a sound is heard after 45/4 seconds. Then speed of sound is (if g= 10 m/s): x* 100 m/s. Find the value of x.



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