Applied Physics I: Chapter 4: Oscillations and Waves
Oscillations and Waves: Basic definitions
1. Displacement 2. Amplitude 3. Time Period 4. Frequency 5. Phase
BASIC
DEFINITIONS
1. Displacement:
The
distance of the particle measured along the path of the motion from its
equilibrium position, at a given instant is called displacement.
Displacement
y = A sinωt
Where
A is the Amplitude and ω is the angular velocity = 2π / T
2. Amplitude:
The
Maximum distance covered by the body on either side of its mean position is
called its Amplitude.
3. Time Period:
The
smallest time required to complete one vibration (or) oscillation is known as
time period.
Time
period T = 2π/ω
(or)
T = 2π / √[ Acceleration/ Displacement ]
(or)
T = 2π / √[ Displacement / Acceleration ]
4. Frequency:
The
number of oscillations (or) vibrations made by a body per second is known as
frequency of oscillation. It is the reciprocal of the time period.
i.e.,
Frequency n= 1/T
5. Phase:
It
is the physical quantity that express the instantaneous position and direction
of motion of an oscillating system.
Applied Physics I: Chapter 4: Oscillations and Waves : Tag: Applied Physics : - Oscillations and Waves: Basic definitions
Applied Physics I: Chapter 4: Oscillations and Waves
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