What is bandwidth in an optical instrument? How does it relate to resolution and noise in an optical instrument?
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Q: 7. A spy camera is said to be able to read the numbers on a car's license plate. If the numbers on…
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- What additional reflectance Bands are available at a 20m resolution? What are some of the applications of these bands - what are they used for?A camera has a lens diameter of 0.0444 m. What wavelength of light IN NANOMETERS must it use to resolve two objects 550 m away that are 0.00718 m apart? [?] nm Hints: Solve for A! The answer should be between 400 and 700. Remember, nano means 10-9.You use a lens of diameter D and light of wavelength l and frequency f to form an image of two closely spaced and distant objects. Which of the following will increase the resolving power? (a) Use a lens with a smaller diameter; (b) use light of higher frequency; (c) use light of longer wavelength. In each case justify your answer.
- Two stars are separated by 1 x 10" m and are 4 light years away. Calculate the resolving power of the Hubble Space Telescope, with a diameter of 2.4m, at this distance. Can the Hubble Space Telescope resolve the two stars? Assume the wavelength of light is 650nm. (Hint: Look up the conversion of light years to meters.)If Superwoman had 0.12-nm wavelength x-ray vision and a 5.0-mm pupil diameter, at what maximum altitude could she distinguish villains from heroes assuming the minimum detail required is 4.8 cm?How is the coherence of light sources essential for holography?