A student sets up a double-slit experiment using monochromatic light of wavelength λ. The distance between the slits is equal to 28 λ. (a) Find the angles at which the m = 1, 2, and 3 maxima occur on the viewing screen. m = 1 ° m = 2 ° m = 3 ° (b) At what angles do the first three dark fringes occur? m = 0 ° m = 1 ° m = 2 ° (c) Why are the answers so evenly spaced? Is the spacing even for all orders? Explain.

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