Define
a) Time period
b) Frequency
c) Audible frequency range.
Answers
Answer:
1)Time period : The time required by a body exhibitting periodic motion to complete one period is known as the time period. The S.I. unit is second. Frequency : The number of times a body exhibits unique motion (each period) in one second is known as frequency. The S.I. unit is per second or hertz.
2)Frequency is the number of occurrences of a repeating event per unit of time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. Frequency is measured in units of hertz which is equal to one occurrence of a repeating event per second.
SI unit: Hertz
3)Humans can detect sounds in a frequency range from about 20 Hz to 20 kHz. (Human infants can actually hear frequencies slightly higher than 20 kHz, but lose some high-frequency sensitivity as they mature; the upper limit in average adults is often closer to 15–17 kHz.)
Answer:
(a) Time Period (T) : Time taken to complete one vibration is called Time period , i.e from A to B.
(b) Frequency (f) or n :Number of oscillations made by a wave in one second is known as its frequency .
(c)An audio frequency or audible frequency (AF) is a periodic vibration whose frequency is in the band audible to the average human, the human hearing range. The SI unit of frequency is the hertz (Hz). The generally accepted standard hearing range for humans is 20 to 20,000 Hz. ...