Advertisements
Advertisements
प्रश्न
Fig. shows three ways in which a string of length l in an instrument can vibrate.
![]() |
![]() |
![]() |
| (i) | (ii) | (iii) |
- Which of the diagram shows the principle note?
- Which vibration has the frequency four times that of the first?
- Which vibration is of the longest wavelength?
- What is the ratio of the frequency of the vibration in (i) and (ii)?
Advertisements
उत्तर
- (i) represents the principal note.
- (iii) has the frequency four (4) times of the first.
- In Figure (i), vibration is of the longest wavelength.
- Ratio of frequency between (i) and (ii) 1 : 2
संबंधित प्रश्न
Which wave property determines pitch?
What type of waves are illustrated by the movement of a rope whose one end is fixed to a pole and the other end is moved up and down?
In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below :
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.
(a) What happens to the air in-between Anhad and the loudspeaker ?
(b) Explain how Anhad receives sound in both ears.
Define the term amplitude of a wave. Write its S.I. unit.
Select the correct option:
Which of the following is an elastic wave?
What do you understand by the term sound energy?
The distance between three consecutive crests of wave is 60 cm. If the waves are produced at the rate of 180/ min, calculate:
- wavelength
- time period
- wave velocity.
Rapid back and forth motion of a particle about its mean position is called _____.
An earthquake produces which kind of sound before the mainshock wave begins
Why is the ceiling and wall behind the stage of good conference halls or concert halls made curved?



