quiz8 - Exam Name_ MULTIPLE CHOICE. Choose the one...

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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) You are projecting 35mm slides onto a wall 2.6m from the projector whose single lens has focal length 12.0cm. (a) How far should the slides be from the lense? (b) How big will the image be? A) (a)12.6cm (b) -72cm B) (a) -12.6cm (b) 72cm C) (a) 25cm (b) 36cm D) (a) 25cm (b) -36cm 1) 2) To the unaided eye, the planet jupiter has an angular diameter of 50 arc seconds. What will be its angular size when viewed through a 1m focal length refracting telescope with an eye piece whose focal length is 40mm? A) 1250 arc seconds B) 500 arc seconds C) 100 arc seconds D) <1 arc seconds 2) 3) What is the focal length of a concave mirror if an object placed 50cm in front of the mirror has a real image 75cm from the mirror? A) 15cm B) 30cm C) 45cm D) 60cm 3) 4) How can you use a telescope as a microscope? A) You adjust the eye piece to focus on a close object instead of a distant object.
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quiz8 - Exam Name_ MULTIPLE CHOICE. Choose the one...

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