Prelab Brief
To study the properties of waves (frequency, wavelength, amplitude) and verify the wave equation v = fλ for both transverse and longitudinal waves.
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Theory
Visualize transverse and longitudinal waves and measure wave velocity. To study the properties of waves (frequency, wavelength, amplitude) and verify the wave equation v = fλ for both transverse and longitudinal waves.
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Formula
amplitude) and verify the wave equation v = fλ for both transverse and longitudinal waves
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Aim
To study the properties of waves (frequency, wavelength, amplitude) and verify the wave equation v = fλ for both transverse and longitudinal waves.
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Apparatus
- Slinky spring
- Stopwatch
- Measuring tape
- Tuning fork (optional)
- Ripple tank (optional)
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Procedure
- Stretch the slinky on a flat surface.
- For transverse wave: flick one end sideways and observe the pulse.
- For longitudinal wave: push one end along the slinky axis.
- Measure the wavelength (λ) — distance between two consecutive crests.
- Count the number of complete waves passing a point per second (frequency f).
- Calculate velocity: v = f × λ.
- Vary frequency and observe the change in wavelength.
Pre-Lab Questions
What is the main aim of the Wave / Pulse Velocity Experiment?
Which principle is demonstrated in the Wave / Pulse Velocity Experiment?
What apparatus is required for this experiment?
Why is Slinky spring used in this experiment?
What formula or relationship is verified in this experiment?
What precaution should be followed while performing this experiment?
What conclusion can be drawn from the Wave / Pulse Velocity Experiment?