3. In the wave models, you imagined adding energy into the wave by moving your arm up and down or back and forth. These are called
mechanical waves. Explain how you know that energy traveled from you
to your friend. In your answer, identify the medium that the energy
traveled through.

Two lasers are shining on a double slit, with slit separation d. laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. the lasers produce separate interference patterns on a screen a distance 5.30 m away from the slits. part a which laser has its first maximum closer to the central maximum? view available hint(s) which laser has its first maximum closer to the central maximum? laser 1 laser 2