seeing through walls

by aquabum619
Tags: walls
 P: 29 1. The problem statement, all variables and given/known data how come we can hear around corners but we cant see around corners? 2. Relevant equations 3. The attempt at a solution because the wall is obstructing the image?
 Mentor P: 8,262 It's to do with diffraction of the wave around the object. What do you know about diffraction? What factors do diffraction depend upon?
 P: 2,048 Then why is that the wall obstructs the sound?
P: 29

seeing through walls

Diffraction by definition is the divergence of light from its initial line of travel.
But images cant diffract through walls, right? Diffraction depends on coherent sources of light waves from a monochromatic source. wrt the double slit ex. right?
 P: 1,351 Much more general than that. If the wavelength is anywhere close to the obstaces dimensions it will move around it, while small wavelengths are a bb on a brickwall, long wavelengths more like a a blob of jello which will peek around corners.
 HW Helper Sci Advisor Thanks P: 24,455 Happy 700, doc! Rockets, huh?
 P: 1,351 I never even noticed, but thanx, and no new ground here, humanity has a choice between well what we are doing and hedging bets,
 P: 1 It depends on the wavelenght, alonger wave like sounds "go over" lager objects.

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