ec_midterm1 - AST 203: Extra Credit for Midterm #1 Due in...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: AST 203: Extra Credit for Midterm #1 Due in class, just before the exam, on Thurs. Mar. 3, 2011 The exams in this class will consist of several short answer (essay) questions followed by several quantitative questions covering the material from class, the reading, and the homework. Below you will find the quantitative questions from last years exam. This is intended to help you prepare for the exam. Students will be awarded up to 1 point of extra credit (applied to the total course gradesee the syllabus) for correctly answering these questions and handing in your solutions immediately before the exam in class. 5. Blackbodies Consider two stars: star 1 has a surface temperature of T 1 = 12000 K; star 2 has a surface temperature of T 2 = 5000 K. a. If the two stars have the same radii, what is the ratio of their luminosities? b. If instead the ratio of the radii were R 2 /R 1 = 10, what is the ratio of their luminosities?...
View Full Document

Page1 / 2

ec_midterm1 - AST 203: Extra Credit for Midterm #1 Due in...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online