Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 36 - Think and Explain: 43

Answer

The unfortunate astronaut falling into the black hole would see the rest of the universe blue-shifted.

Work Step by Step

The energy of a photon is given by E = hf, where h is Planck's constant. The energy of incoming light is increased, because it is falling into the gravitational well of the black hole, so the frequency is raised (the light is blue-shifted).
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.