Why isn’t light noisy? It’s going faster than the speed of sound, so why doesn’t it make a sonic boom?

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Why isn’t light noisy? It’s going faster than the speed of sound, so why doesn’t it make a sonic boom?

In: Physics

Because it is not made of atoms, or indeed any particles that have any mass. Most of the photons (light particles) zoom between the air molecules rather than pushing against them.

Because light is not an object. Sonic booms happen when an object compresses the air molecules.

Sound is a wave, it has a wavelength. Sonic booms are caused by things larger than this wavelength. Photons are much smaller, they are even much smaller than an atom.

Why would we evolve the ability to perceive light as sound, it’d be very annoying when you’re out hunting to hear a foghorn because your’e in direct sunlight. There’s probably genetic disorders that cause people to experience light as sound, like a sythesisia, but if those genes spread in our ancient population then that tribe would be wiped out by the neighbouring brutes who can walk around in the day without perceiving light as sound.

Because we hear light with our eyes.

Our ears pick up sound when air vibrations vibrate the inner ear. Our eyes pick up photons using proteins called rhodopsin which absorb them and send signals to the brain