T2a4s - Physics 102Assignment 4 Solutions(Spring Term{1 23.3(1 The first image in the left-hand mirror is 5.00 ft behind the mirror or 10.0 ft from

# T2a4s - Physics 102Assignment 4 Solutions(Spring Term{1...

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Physics 102Assignment 4 Solutions (Spring Term) {1} 23.3 (1) The first image in the left-hand mirror is 5.00 ft behind the mirror, or 10.0 ft from the person . (2) The first image in the right-hand mirror serves as an object for the left-hand mirror. It is located 10.0 ft behind the right-hand mirror, which is 25.0 ft from the left-hand mirror. Thus, the second image in the left-hand mirror is 25.0 ft behind the mirror, or 30.0 ft from the person . (3) The first image in the left-hand mirror serves as an object for the right-hand mirror. It is located 20.0 ft in front of the right-hand mirror and forms an image 20.0 ft behind that mirror. This image then serves as an object for the left-hand mirror. The distance from this object to the left-hand mirror is 35.0 ft. Thus, the third image in the left-hand mirror is 35.0 ft behind the mirror, or 40.0 ft from the person . {2} 23.15 The focal length of the mirror may be found from the given object and image distances as 1 1 1 f p q = + , or ( )( ) 152 cm 18.0 cm 16.1 cm 152 cm 18.0 cm pq f p q = = = + + +