In an experiment to study the photoelectric effect, a beam of monochromatic light is aimed at a cathode. However, the cathode does not release electrons. Which change to the experiment is most likely to cause the release of electrons? A. increasing the frequency of the monochromatic light
B. decreasing the frequency of the monochromatic light
C. increasing the intensity of the monochromatic light
D. aiming the beam of light at the anode instead of the cathode

Isobars are lines of constant or equal pressure on a weather map. they can be used to find areas of low or high pressure over a broad area, and they can tell us how intense the system may be. on weather maps, you may have noticed areas that have a large l or h over a region with lines circling around them. the l stands for low pressure and h stands for high pressure. the lines circling them are isobars. check out the pressure system and isobars over georgia and florida. what is the present weather in this area ? a) clear and sunny b) cold and cloudy c) changing weather d) lots of precipitation