Advertisements
Advertisements
Question
In order to reduce the loudness of a sound, we have to
Options
decrease its frequency of vibration of the sound
increase its frequency of vibration of the sound
decrease its amplitude of vibration of the sound
increase its amplitude of vibration of the sound
Solution
decrease its amplitude of vibration of the sound
Explanation -
Since, loudness depends upon amplitude, so it can be increased by increasing amplitude and it can be decreased by decreasing amplitude.
APPEARS IN
RELATED QUESTIONS
When we change feeble sound to loud sound we increase its
In the curve (Fig.12.1) half the wavelength is
The given graph (Fig.12.2) shows the displacement versus time relation for a disturbance travelling with a velocity of 1500 ms–1. Calculate the wavelength of the disturbance.
The distance between two adjacent crests is called ______.
A sound of a single frequency is called ______ and a collection of tones is called ______.
Match the following:
| 1. | Wave | a. | Unwanted sound |
| 2. | Sound | b. | Successive reflections |
| 3. | Noise | c. | Movement of disturbance |
| 4. | Thunder | d. | Mechanical wave |
Name the five characteristics of a sound wave.
Differentiate tone from the note.
Define:
Frequency
Numerical problems:
A person is listening to a tone of 400 Hz from a distance of 500 m from the source of the sound. What is the time interval between successive compressions from the source?
