PROBLEM 33 & 34 May 07 2010

PROBLEM 33 & 34 May 07 2010 - incidence on a cd-ROM. On...

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Solving Problems 33 and 34 Physics 002C May 7, 2010 Problem 33 (like 27.31): What is the theoretical resolution of a telescope having an objective of diameter D = 10 m observing light at a wavelength of 410 nm? a) 0.05 rad; b) 0.5 rad; c) 5 rad; d) 50 rad; e) 500 rad. This resolution would permit one to resolve a baseball 1000 km away. What do you know? The angular resolution of a circular objective is about 1.22 times lambda over D = 0.5x10 -6 /10 = 0.05 rad Problem 34 (like 27.32): A green laser light of wavelength 532 nm shines with normal
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Unformatted text preview: incidence on a cd-ROM. On a screen three feet away the diffraction spots are one foot apart. What is the spacing of the lines on the disk? a) 1.6 nm ; b) 0.293 mm ; c) 1.68 m ; d) 47 nm ; e) 7.43 m What do you know? The angle between diffraction minima in the forward direction is such that sin d . The tangent of the angle is 1/3 so . o 43 . 18 ) 3333 . arctan( So sin / d 1.682 m...
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This note was uploaded on 09/23/2010 for the course PH 02c taught by Professor Mile during the Spring '04 term at Riverside Community College.

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