Question

A bat in search of prey hears the echo of its squeak after 0.1 s .How far is the prey from the bat if the squeak got reflected from it?

Answer 1

Step 1 - Given Data

Time to hear the squeak$t=0.1s$

Speed of sound$v=340m/s$

Step 2 - To Find out the distance between the bat and prey

Since the distance travelled by the sound is double the distance between the bat and the prey i.e. $d$

Distance travelled by the sound will be$2d$.

So, $Dis\tan ce\left(2d\right)=Speed\left(v\right)xTime\left(t\right)$

$\Rightarrow 2d=340x0.1$

$\Rightarrow 2d=34$

$\Rightarrow d=\frac{34}{2}$

$\Rightarrow d=17m.$
Therefore, the distance between the bat and the prey is $17m.$