Question

13. A person standing before a hill shouts and hears the echo after 1.9 sec. Find
the distance between the person and the hill.( Speed of sound in air = 340m/s).​

Answer 1

Question

A person standing before a hill shouts and hears the echo after 1.9 sec. Find  the distance between the person and the hill.( Speed of sound in air = 340m/s).​

Answer: distance=323m

GIVEN

• time=1.9sec
• speed of sound=340m/s

FORMULA USED

• distance= speed*time

CONCEPT USED

echo is bouncing back of sound

SOLUTION

⇒distance=speed x time

as echo is bouncing back of sound so distance is twice hence

⇒2 distance= speed x time

⇒2 distance=340 x 1.9

⇒2 distance= 646

⇒distance=646/2

⇒distance=323m

HOPE THIS HELPS U!

Answer 2

Answer:

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Explanation:

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