A set of circular water waves is generated simultaneously
and the resulting interference is observed. By increasing the
number of interfering circular waves, Huygens' Principle can be
verified. With the aid of plane water waves, diffraction phenomena
of waves at different obstacles (slit, edge, double-slit etc.) are
investigated. In a further experiment, the principle of "phased
array antennas" can be demonstrated. To do so, two circular waves
are generated to interfere and the resulting interference pattern
on varying the phase of one of the circular waves with respect to
the other one is observed.
- see and understand the laws that govern wave phenomena
- just add water - compact device offers fast and easy setup
- bright green LED offers qualities even for a demonstration
- Use the comb to generate two circular waves and observe the
resulting interference. Increase the number of interfering circular
waves up to ten by using all teeth of the comb to demonstrate
- Generate plane water waves and use a barrier to demonstrate
diffraction at an edge. Then, form a slit and observe diffraction
behind the slit. Repeat this experiment for a double-slit.
- By using the integrated wave generator as well as the external
wave generator, generate two circular waves and observe the
interference. Vary the phase of the external wave generator and
observe the resulting interference pattern to understand the
principle of "phased array antennas".
What you can learn about
- Diffraction of water waves
- Interference of waves
- Huygens' Principle
- Principle of "phased arrays antennas"