English

Why is a loud sound heard at resonance?

Advertisements
Advertisements

Question

Why is a loud sound heard at resonance?

One Line Answer
Advertisements

Solution

At resonance, the body vibrates with a large amplitude, conveying more energy to the ears, resulting in a loud sound.

shaalaa.com
  Is there an error in this question or solution?
Chapter 7: Sound - EXERCISE-7 (B) [Page 164]

APPEARS IN

Selina Concise Physics [English] Class 10 ICSE
Chapter 7 Sound
EXERCISE-7 (B) | Q 25. | Page 164

RELATED QUESTIONS

The diagram above shows a wire stretched over a sonometer. Stems of two vibrating tuning forks A and Bare touched to the wooden box of the sonometer. It is observed that the paper rider (a small piece of paper folded at the centre) present on the wire flies off when the stem of vibrating tuning fork B is touched to the wooden box but the paper just vibrates when the stem of vibrating tuning fork A is touched to the wooden box.

1) Name the phenomenon when the paper rider just vibrates.

2) Name the phenomenon when the paper rider flies off.

3) Why does the paper rider fly off when the stem of tuning fork B is touched to the box?


What are forced vibrations? 


Two pendulums C and D are suspended from a wire as shown in the figure give below. Pendulum C is made  to oscullate by displaying it from its mean position. It is seen that D also starts oscillating. 

(i) Name the type of oscillation, C will execute.
(ii) Name the type of oscillation, D will execute.
(iii) If the length of D is made equal to C then what difference will you notice in the oscillations of D ?
(iv) What is the name of the phenomenon when the length of D is made equal to C ?


Give two examples of forced vibrations.

Write down the factors on which the frequency of vibrating depends. Explain them.

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?

When a tuning fork, struck by a rubber pad, is held over a length of the air column in a tube, it produces a loud sound for a fixed length of the air column. Name the above phenomenon. How does the frequency of the loud sound compare with that of the tuning fork? State the unit for measuring loudness.


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


Explain Why are stringed musical instruments provided with large sound boxes?


Explain free and forced vibrations. Give an experimental arrangement to illustrate the phenomenon of resonance.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×