Question

At night, bats emit pulses of sound to detect obstacles and prey. The speed of
sound in air is 340 m/s.
The pulse of sound hits a stationary object and is reflected back to the bat. The pulse
is received by the bat 0.12s after it was emitted.
Calculate the distance travelled by the pulse of sound during this time.

Answer 1

Solution :-

We know that,

• Distance travelled by the pulse = v×t/2

⇒ d = 340 × 0.12 ÷ 2

⇒ d = 340 × 0.6

⇒ d = 34 × 6

⇒ d = 204m

Final answer :-

Distance travelled by the pulse is 204m

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⇒ Anagh :)