What is the benefit of a longer exposure time when making an image? O It allows the detector to record light at very short wavelengths. O It allows the detector to measure rapid variations in light intensity. O It allows the detector to achieve higher angular resolution. O It allows the detector to collect more total light.

The Rayleigh criterion provides a convenient way to describe the theoretical resolution (e.g. an ability to distinguish objects ) of an optical system. The criterion states that two small bright sources of light can be resolved if the first d mìnimum of the image of one source point just coincides with of further apart then the first maximum of another (s Ho Your c below). A converging lens, 28.7 mm in diameter, is used to form images of distant objects. Considering the diffractio lens, what angular separation must two distant point objects have in order to satisfy Rayleigh's criterion? Assume t Here wavelength of the light from the distant objects is 469 nm. Provide your answer in millidegrees (mdeg). STE Exp complexity subscibers Answer: Choose... + Check Finishin Check c

Optical fibers are a central part of technology for rapid information transmission with a high level of efficiency. A new type of optical fiber is crafted with an index of refraction n = less than that of water in the vicinity of room temperature, where NH2O fact that n < nH20 potentially problematic if the fiber should be submerged? 1.25 = 1.33. Why is the O A. Total internal reflection would be frustrated, allowing loss of signal. O B. Internal reflection would actually be enhanced, so there is no problem. C. Electric eels might have free internet access.

The nonreflective coating on a camera lens with an index of refraction of 1.23 is designed to minimize the reflection of 625-nm light. If the lens glass has an index of refraction of 1.51, what is the minimum thickness of the coating that will accomplish this task? X Your response differs from the correct answer by more than 10%. Double check your calculations. m