Mathematics, 09.06.2021 14:00 steven983
A camera lens with focal length f = 50 mm and maximum aperture f>2
forms an image of an object 9.0 m away. (a) If the resolution is limited
by diffraction, what is the minimum distance between two points on the
object that are barely resolved? What is the corresponding distance
between image points? (b) How does the situation change if the lens is
âstopped downâ to f>16? Use λ= 500 nm in both cases
Answers: 3
Mathematics, 21.06.2019 19:20
The suare root of 9x plus 7 plus the square rot of 2x equall to 7
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What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83
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Mathematics, 21.06.2019 23:00
Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain
Answers: 2
Mathematics, 22.06.2019 01:00
The stairs leading from the ground to the entrance of a plane forms a right triangle with the ground. if the distance of the stairs measures 22 feet and the ground distance measures 11 feet, how high is the entrance to the plane from the ground? which diagram represents this scenario? / 22ft © 22ft 11 ft 11 ft 22 it
Answers: 3
A camera lens with focal length f = 50 mm and maximum aperture f>2
forms an image of an object 9...
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