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For this picture Anna wrotewrote: "Incandescent light is incoherent because it comes from many sources and the same is true for sunlight. By passing the light through the one slit he created a single coherent wave front."

What represent the drawn lines in the sketch about double slits? Are this wavefronts? What is a wavefront?

enter image description here

For this picture Anna wrote: "Incandescent light is incoherent because it comes from many sources and the same is true for sunlight. By passing the light through the one slit he created a single coherent wave front."

What represent the drawn lines in the sketch about double slits? Are this wavefronts? What is a wavefront?

enter image description here

For this picture Anna wrote: "Incandescent light is incoherent because it comes from many sources and the same is true for sunlight. By passing the light through the one slit he created a single coherent wave front."

What represent the drawn lines in the sketch about double slits? Are this wavefronts? What is a wavefront?

1
source | link

What is a wavefront?

enter image description here

For this picture Anna wrote: "Incandescent light is incoherent because it comes from many sources and the same is true for sunlight. By passing the light through the one slit he created a single coherent wave front."

What represent the drawn lines in the sketch about double slits? Are this wavefronts? What is a wavefront?