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A bat emits ultrasond wave of …

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A bat emits ultrasond wave of 30000Hz if the speed of sound is 350 m/s and the bat hears its echo after 0.6 second find how far the bat and.obstacle and the.wave length

Posted by Kartik Rahi 8 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Shweta Gulati 8 years, 2 months ago

Speed of sound = 350 m/s

Echo time = 0.6 s

i.e. time = 0.6/2 =0.3s

Distance of the bat and obstacle = speed X time

= 350 X 0.3 = 105 m

${\lambda }$ = velocity / frequency

= 350/30000 = 11.7 X 10^-3 m

0Thank You

Rudransh Nath Tripathi 8 years, 2 months ago

frequency of ultrasound= 30000Hz

0Thank You

ANSWER

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