A wave travels at a constant speed. How does the wavelength change if the frequency is reduced by a factor of 4? A. The wavelength does not change. B. The wavelength increased by a factor of 4. C. The wavelength decreases by a factor of 16. D. The wavelength decreases by a factor of 4.

Listed following are various physical situations that describe how light interacts with matter. match these to the appropriate category. 1) transmission? -visible light meets clear glass -visible light does not pass through a black wall -red light hits a red sweatshirt -light comes from your computer screen -cell phone signals pass through walls -blue light hits a red sweatshirt -white light hits a white piece of paper -light comes from a light bulb