Once dark adapted, the pupil of your eye is approximately 7 mm in diameter. The headlights of an oncoming car are 120 cm apart. If the lens of your eye is limited only by diffraction, at what distance are the two headlights marginally resolved? Assume the light’s wavelength in air is 600 nm and the index of refraction inside […]
A spy satellite uses a telescope with a 2.0-m-diameter mirror. It orbits the eaJth at a height of 220 km. What minimum spacing must the re be between two objects on the earth’s surface if they are to be resolved as distinct objects by this telescope? Assume the telescope’s resolution is limited only by diffraction and that it is recording […]
Susan is quite nearsighted; without her glasses, her far point is 35 cm and her near point is 15 cm. Her glasses allow her to view distant objects with her eye relaxed. With her glasses on, what is the closest object on which she can focus?
A microscope with a 5 X objective lens images a 1.0 mm diameter specimen. What is the diameter of the real image of this specimen formed by the objective lens?