[" 4.If a splash is heard "4.23" seconds after a stone is "],[" dropped into a well "78.4m" deep,find the speed of "],[" sound in air."]

If the splash is hear 4.23 seconds after a stone is dropped into a well, 78.4 metres deep, find the velocity of sound in air.

A stone is dropped in a well 107 m deep. If the splash is heard 5 seconds after the stone is dropped, then calculate the speed of sound in air.

A splash is heard 3.91 after a stone is dropped into a well of 67.6 m deep. The speed of sound in air is

A splash is heard 3.91 after a stone is dropped into a well of 67.6 m deep. The speed of sound in air is

If the splash is heard 4.23 s after a stone is dropped into a pit in which water level is 78.4 m deep, the velocity of sound is

A splash in heard 3.12 s after a stone is dropped into a well 45 m deep. The speed of sound in air is [ g =10 ms ^(-2)]

A splash in heard 3.12 s after a stone is dropped into a well 45 m deep. The speed of sound in air is [ g =10 ms ^(-2)]