Why sound can be heard on the other side of a brick wall, but light couldn’t be seen regardless of intensity?
In: Physics
Sound is a vibration. If that vibration touches something, the thing it touches will also vibrate. This is why sound can be heard through solid objects.
Light is a particle, called a photon. Photons are really really small, but the gaps in a brick wall are still too small for the photons to go through, no matter how many you throw at them. This is why you can’t see through a brick wall.
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