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Mechanical Waves (Superposition of wave (Standing Wave (image, Combination…
Mechanical Waves
Superposition of wave
Constructive Interference- two wave in phase
Principle of superposition y=y1+y2
Destructive Interference- two wave out of phase
Standing Wave
Combination of 2 waves moving in opposite direction
An Interference pattern
Impulse-momentum relation
Change in momentum = Impulse
Equivalent to Newton's 2nd law
Wave Intensity
Average power that travels through given area
I = P/A
I=
for sound wave
P=
Average Power
Types of mechanical waves
Transverse
Crest vs Trough
Eg: Ripples on ponds Vibration in guitar string
Displacement perpendicular to direction of motion
Longitudinal
Displacement parallel to direction of motion
Eg: Sound wave Seismic P-waves
Compression vs Rarefaction
Formula & Equation
+x-direction
y=
v=
a=
Important formula
Definition
Disturbance that travels through medium
