PIRA: 6H10.30


 Lab Equipment  Directions
  1.  2 refrigerator grates (wire shelves)
  2. rope
  1.  Insert the rope through the vertical bars of one grate and start a vertically oscillating wave along the rope behind the grate. Observe the transmission of the wave through the gate.
  2. Feed the rope through the second grate and align its bars in a horizontal direction. Again start the wave in the rope and observe whether it is transmitted through the grates.