The diagram shows the variation of air pressure from an alarm siren at particular instant. The speed of sound in the air is 340m/s. what is the period of alarm siren.
2.35ms
No diagram. Cannot copy and paste here.
To determine the period of the alarm siren, we need to analyze the diagram and identify the time it takes for one complete cycle of the variation in air pressure. The period of a wave is the time it takes for one complete cycle.
1. Start by identifying one complete cycle on the diagram. Look for the point where the air pressure reaches its maximum value, then decreases to its minimum value, and finally returns to the starting point.
2. Measure the time it takes for this complete cycle. This can be done by identifying the time at the starting point and then finding the time when the cycle completes.
3. Once you have the time for one complete cycle, that is the period of the alarm siren. The period is typically represented by the symbol 'T' and is measured in seconds.
4. The speed of sound in air is given as 340 m/s. This information is provided to explain the relationship between the physical location of the siren and the corresponding point on the diagram. It is not directly needed to determine the period of the siren.
By following these steps, you can determine the period of the alarm siren based on the variation of air pressure shown in the diagram.