In a double-slit experiment, light from two monochromatic light sources passes through the same double slit. the light from the first light source has a wavelength of 645 nm. two different interference patterns are observed. if the 8th order bright fringe from the first light source coincides with the 9th order bright fringe from the second light source, what is the wavelength of the light coming from the second monochromatic light source?

Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above

Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.