👉 Visible electromagnetic radiation. The human eye can typically detect radiation (light) in the wavelength range of about 400 to 750 nanometers. Nearby shorter and longer wavelength ranges, although not visible, are commonly called ultraviolet and infrared light.
Alright class, settle down, let’s take a look! Today we're diving into something quite bright, A concept that shines with all of its might – “light!” Now, the dictionary gives us a key, “Visible electromagnetic radiation,” you see. Think of it like waves, traveling so free, Sending energy for you and for me! (Tap your fingers rhythmically) It's radiation , that’s important to know, A force that travels, quick and aglow! Our eyes can only catch a certain hue, Between 400 to 750 nanometers, it's true. That's the range where colors appear, Like red and blue, banishing fear! But beyond those limits, there’s more to explore, Ultraviolet light, wanting much more! (Think of sunscreen protecting your skin!) And infrared light, warm and so deep, Like heat from a fire, secrets they keep. So “light” isn't just what we see in the day, It’s a spectrum of energy, come what may! Do you have any questions for me? Don’t hesitate to ask, Let’s make sure this concept truly will last!