p7 - . 0 cm and focal length 50 cm. Consider diraction, and...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Physics 25 Problem Set 7 Harry Nelson due Monday, May 19 Please make your work neat, clear, and easy to follow. It is hard to grade sloppy work accurately. Generally, make a clear diagram, and label quantities. Derive symbolic answers, and then plug in numbers after a symbolic answer is available. 1. Consider a concave mirror where x is the horizontal, y is vertical, and the formula for the surface of the mirror is y 2 / (2 R ), where R is the radius of the mirror; this is as done in class. Assume y is small and y 2 / (2 R ) is tiny. Consider an object at distance p from the mirror, and use geometry and algebra to show that the three principal rays all converge at a distance q from the mirror, where 1 /p + 1 /q = 2 /R . 2. Consider a telescope with an objective of diameter 5
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: . 0 cm and focal length 50 cm. Consider diraction, and estimate the width of a distant star in the focal plane of the objective. What focal length should you choose for the eyepiece to get an angular magnication of 10? 3. Crawford 9.32 4. Crawford 9.60. Hint: use the formula(s) for angular deection discussed in class. Add the following questions: evaluate f (dened in the problem) for a pair consisting of a converging lens of focal length f 1 and a diverging lens of focal length-f 1 , for two cases: (a) rays incident from the left; (b) rays incident from the right. 5. Anderson, 3-5 6. Anderson, 3-6...
View Full Document

Ask a homework question - tutors are online