Question
Download Solution PDFSound travels fastest in the medium
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Sound: A local disturbance whose propagation is facilitated by the collisions between particles this disturbance propagates in a longitudinal wave, imagine one molecule hitting the next molecule, and then that molecule hitting the next, and so forth.
- It is a mechanical wave that needs a medium to travel.
- The speed of sound is maximum in solid then it is in liquid and slowest in gases.
EXPLANATION:
- The distances between molecules in solids are very small, i.e., solids are denser - as compared to liquids and gases.
- Because they are so close, they can collide very quickly, i.e. it takes less time for a molecule of the solid to 'bump' into its neighbor.
- Solids are packed together tighter than liquids and gases, hence sound travels fastest in solids. Here aluminum is solid. So option 3 is correct
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