WHY DO BUBBLES HAVE COLOR? The light rays that are reflected off the inner surface of the bubble travel further than the light rays that are reflected off the outer surface. Some wavelengths will interfere destructively and others constructively, depending on the extra distance traveled by a transmitted-and-reflected ray. Whether the reflected rays are in or out of phase with each other depends on the extra distance (through the film and back) that the second ray must travel before rejoining the first ray. This distance depends on the angle of the incident light and the thickness of the film.
Also velocity of the light in a medium is inversely proportional to the refractive index of that medium. If the refractive index increases, then velocity of the light decreases. Reflection happens when light is returned back from the surface it hits. Incoming and reflected lights have the same angle as the surface. If the surface reflects most of the light then we call such surfaces as mirrors reflective.
We will be using the seven colours red, orange, yellow, green, blue, indigo and violet. The dependent variable (the one we measure) is the angle of refraction or refractive index. We will measure this (the angle of refraction) from the normal line using a protractor. First we will shine a light using the ray box. We will use coloured filters (first red and then continue in rainbow order) to gain coloured light.
Planck's constant: the constant relating the change in energy for a system to the frequency of the electromagnatic radiation absorbed or emitted, equal to 6.626 X 10^-34 J 5. Quantization: the concept that energy can occur only in discrete units called quanta 6. Photon: a quantum of electromagnetic radiation 7. Photoelectric effect: ejection of electrons from a substance by incident electromagnetic radiation, especially by visible light 8. E=mc^2: Einstein's equation proposing that energy has mass; E is energy, m is mass, and c is the speed of light 9.
When we use energy, it doesn’t disappear. It just changes to a different form. Energy _A___6. Work is a transfer of A. energy B. force C. mass D. motion ____ 7. What happens to the kinetic energy of a ball as it reaches its maximum height when thrown?
There is also some evidence of foreshortening, which is a way of showing perspective by making an object appear to recede or protrude towards or away from the viewer, in the way she is positioned. Her left shoulder is turned slightly towards us, making it appear as though she is leaning vaguely towards us. The hand that is holding the stylus is slightly larger than what it should be, which gives it perspective and makes it appear to be closer to us than the rest of her body