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संबंधित प्रश्न
The human ear can detect continuous sounds in the frequency range from 20 Hz to 20,000 Hz. Assuming that the speed of sound in air is 330 m s−1 for all frequencies, calculate the wavelengths corresponding to the given extreme frequencies of the audible range.
What adjustments would you make for tuning a stringed instrument for it to emit a note of a desired frequency?
The following diagram shows three ways in which the string of an instrument can vibrate.

(a) which of the diagram shows the principal note?
(b) which has the frequency four times that of the first?
(c) what is the ratio of the frequency of the vibration in (i) and (ii)?
What is a soundboard ? Explain the working of a soundboard with the help of a labelled diagram.
Draw a labelled diagram to show the multiple reflections of sound in a part of the stethoscope tube.
What are mechanical waves?
A cork piece is floating on the surface of the water in a pond. A piece of pebble is dropped into the water. What will be your observation?
Name the type of waves that are used for sound ranging. Why are radio waves not audible to us?
The direction of the incident sound, the direction of reflected sound, and the normal are in different Planes.
