What is the frequency of the sound made by a siren having a disc with 32 holes and making 25 revolution per seconds?
Question 1 Report
What is the frequency of the sound made by a siren having a disc with 32 holes and making 25 revolution per seconds?
Answer Details
The frequency of the sound produced by a siren is determined by the number of sound waves produced per second, which depends on the number of times the sound source completes a full cycle of motion per second. For a siren with a rotating disc and multiple holes, the frequency of the sound produced is equal to the product of the number of holes on the disc and the number of revolutions per second.
In this case, the siren has 32 holes on the disc and makes 25 revolutions per second, so the frequency of the sound produced would be:
Frequency = 32 holes/disc * 25 revolutions/second = 800 Hz
Therefore, the correct answer is option C) 800Hz.
Download The App On Google Playstore
Everything you need to excel in your exams
Personalized AI Learning Chat Assistant
200,000+ Exam Questions Across IGCSE, JAMB, WAEC & NECO
Over 3,900 Lesson Notes
Offline Support - Learn Anytime, Anywhere
Green Bridge Timetable
Literature Summaries & Potential Questions
Track Your Performance & Progress
In-depth Explanations for Comprehensive Learning