Pls help i have test

State the right hand rule of the direction of magnetic field in a conductor carrying current

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

If the wavelength is tripled, while the speed of the wave is held constant, what happens to the frequency?