A Boy Fires a Gun and Hears the Echo 2 Seconds Later. If He is 480 M Away from a Wall, Calculate the Velocity of Sound in Air. - Physics

A boy fires a gun and hears the echo 2 seconds later. If he is 480 m away from a wall, calculate the velocity of sound in air.

Numerical

Velocity of sound = `"distance travelled"/"time taken" = (2"d")/"t"`

∴ Velocity of sound = `(2 xx 480)/2` = 480 m/s

shaalaa.com

Is there an error in this question or solution?

Chapter 3: Sound - Exercise 1 [Page 148]

Chapter 3 Sound
Exercise 1 | Q 4 | Page 148

What is loudness of sound? What factors does it depend on?

What is sound? What type of waves are sound wave in air?

State the speed of (i) light and (ii) sound in air?

In which medium the speed of sound is more: humid air or dry air? Give a reason to your answer.

Complete the following sentences :

Wave velocity = ________________ × wavelength.

What do you mean by the audible range of frequency?

A continuous progressive transverse wave of frequency 8 Hz moves across the surface of a ripple tank

With reference to the frequency, describe the movement of water on the surface

The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?

Find the odd one out.