- Waves are classified into mechanical & non-mechanical based on the vibrations.
- Most of the waves are mechanical waves.
- Vibration is movement of particles from their original positions
Frequency is defined as no. of vibrations per sec.
f= 1/T
f=1/2pie rootk/m for SHM,
f=1/2pie rootl/g
Superposition of waves:
- It is overlap of two waves to give new wave.
- If two waves are in phase i.e. coincide, then frequency of new wave increases& it in same phase as initial waves.
- If they are out of phase, then new wave frequency is 0
IMP POINTS:
- The medium is not transported with the wave.
- A wave?s, velocity depends on the medium.
- Any wave that is periodic will display a repeating pattern when graphed as a function of position.
- The distance spanned by one repetition is called WAVE LENGTH
- V=LAMBDA/T;V=LAMBDA(f)
rate me if it is useful.
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