Which of the following pairs correctly matches the wave property with the perceived property ?

Alright, so which of the following pairs correctly matches the wave property with the perceived property? Let's just run through them and see what they say. Alright, so a reads wavelength and brightness, but that is not accurate. Remember, wavelength is basically the actual length between the crests of the wave or how wide a wave is and that is associated with what color or hue we are actually seeing. So a is incorrect, b is amplitude and brightness, and remember amplitude is basically how tall the wave is and a taller wave is going to be perceived as brighter. So amplitude does correspond with the perceived brightness of an object, so b is correct. As a quick reminder running through c and d here, obviously we talked about amplitude and hue already, so we know that that one is incorrect. And d reads the number of wavelengths and hue, but remember the number of wavelengths is related to the saturation of the object, more like the purity or the vividness of that object. So, out of all of these, amplitude is related to brightness. And there you go.