A sound wave has a frequency of 440 Hz. What is its period?
Practice Questions
Q1
A sound wave has a frequency of 440 Hz. What is its period?
0.00227 s
0.00455 s
0.01 s
0.1 s
Questions & Step-by-Step Solutions
A sound wave has a frequency of 440 Hz. What is its period?
Step 1: Understand that frequency (f) is how many times a wave repeats in one second. In this case, the frequency is given as 440 Hz.
Step 2: Know that the period (T) is the time it takes for one complete wave to pass a point. It is the inverse of frequency.
Step 3: Use the formula for period: T = 1/f.
Step 4: Substitute the frequency into the formula: T = 1/440.
Step 5: Calculate the value: T = 0.00227 seconds (approximately).
Frequency and Period Relationship – The period of a wave is the reciprocal of its frequency, indicating the time it takes for one complete cycle of the wave.
