A man who is standing at a distance of $850$ from a sound reflecting surface claps loudly if the velocity of the sound in air is $340 m / s$ , then the time taken by the Eco to reach him is

5 s

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

4 s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

2.5 s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

3 s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $5 s$
The distance between the source and observer is $= 850 m$
The speed of the sound is $340 m / s$ .

The time taken by the echo to reach the person clapping is given by:
$t = \frac{2 d}{v}$

$t = \frac{2 \times 850}{340}$

$t = 5 s e c$

Suggest Corrections

Similar questions

Q. A man standing on a cliff claps his hand, and hears its echo after

1 s

. If sound is reflected from another mountain and velocity of sound in air is

340 m/s

, then the distance between the man and the mountain is

Q. If man were standing unsymmetrically between parallel cliffs, claps his hands and starts hearing a series of echoes at intervals of 1 s. If speed of sound in air is

340 m s^{- 1}

, the distance between two cliffs would be

Q. A person claps his hands in an empty room. He heard the echo of the sound after 5 seconds. What is the distance between the source of the sound and the reflecting surface, if the speed of sound in air is given as

340 m s^{- 1}

A person is standing at a distance of $d m$ from a wall and clapping at a rate of $4$ claps per second. The echo of his clap coincides with his clap and he hears the echo of two claps after he stops clapping. What is $d$ ? (Assume velocity of sound to be $340 m / s$ )

Q. A man stands before a large wall at a distance of

50.0 m

and claps his hand in regular intervals such that the echo of a clap merges with the next clap. If he has to clap

10

times in

3

seconds then, calculate the velocity of sound in air.

Join BYJU'S Learning Program

A man who is standing at a distance of 850 from a sound reflecting surface claps loudly if the velocity of the sound in air is 340 m/s, then the time taken by the Eco to reach him is

The correct option is A 5 sThe distance between the source and observer is =850 mThe speed of the sound is 340 m/s.The time taken by the echo to reach the person clapping is given by:t=2dvt=2×850340t=5 sec

A man who is standing at a distance of $850$ from a sound reflecting surface claps loudly if the velocity of the sound in air is $340 m / s$ , then the time taken by the Eco to reach him is

The correct option is A $5 s$
The distance between the source and observer is $= 850 m$
The speed of the sound is $340 m / s$ .

The time taken by the echo to reach the person clapping is given by:
$t = \frac{2 d}{v}$

$t = \frac{2 \times 850}{340}$

$t = 5 s e c$