Two-source ripple tank

Two sources, X and Y, dipping into the water together at the same rate. Drag the probe anywhere in the tank to read off how far the wave from each source has travelled to reach it.

X and Y dip in step · probe reads path lengths in cm

running

Probe

from X—

from Y—

path difference—

in wavelengths—

—

Tank

Source separation d6.0 cm

Wavelength λ1.50 cm

View

Crest arcs, as drawn on the worksheet Lines of still water The eight worksheet points

Available at d = 6.0 cm and λ = 1.50 cm.

crest trough