मराठी

Explain a Person Walking Past a Railway Line, in the Middle of Night Hears a Ringing Sound Along with the Sound of His Footsteps. - Physics

Advertisements
Advertisements

प्रश्न

Explain a person walking past a railway line, in the middle of night hears a ringing sound along with the sound of his footsteps.

टीपा लिहा
Advertisements

उत्तर

When the vibrations produced by the feet of the person are impressed on the rails, they vibrate with forced vibrations, thereby producing a loud sound.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Echoes and Vibrations of Sound - Short Answers

APPEARS IN

आईसीएसई Physics [English] Class 10
पाठ 6 Echoes and Vibrations of Sound
Short Answers | Q 59

संबंधित प्रश्‍न

Define the Resonance phenomenon?


In following figure shows two tuning forks A and B of the same frequency mounted on two separate sound boxes with their open ends facing each other. The fork A is set into vibration.

  1. Describe your observation.
  2. State the principle illustrated by this experiment.


A vibrating tuning fork, held over an air column of a given length with its one end closed, produces a loud audible sound. Name the phenomenon responsible for it and explain the observation.


Why are the stringed instruments like guitar provided with a hollow sound box?


Differentiate  between the following: 
Light and sound waves.


A rifle shot is fired in a valley between two parallel walls. The echo from one wall is heard in 3 s and the echo from the other wall is heard 3 s later. If the velocity of sound at 00c is 330 ms-1 and the temperature in the valley is 100c, calculate the width of the valley. For every 10c rise in temperature, the velocity of sound increase by 0.61 ms-1.

What is meant by resonance? Give two examples of resonance from daily life.

Give the physical explanation for the difference between musical sounds and noises.

The diagram below shows three different modes of vibration P, Q and R of the same string of a given length.

P Q R
  1. Which vibration will produce a louder sound and why?
  2. Which vibration will produce sound of maximum shrillness (or pitch) and why?
  3. What is the ratio of wavelength of vibrations P and R?

A bucket kept under a running tap is getting filled with water. A person sitting at a distance is able to get an idea when the bucket is about to be filled.
(i) What change takes place in the sound to give this idea?
(ii) What causes the change in the sound?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×