The figure below shows two different kinds of electromagnetic radiation traveling toward the observer at the left of the image.Which is more likely to reach the observer,and why? 
A) A, because redshifting helps it propagate through dust.
B) B, because dust scatters short wavelength radiation most efficiently.
C) A, because high intensity radiation penetrates matter more efficiently.
D) B, because hydrogen produces long wavelength radiation.
Correct Answer:
Verified
Q41: What defines the habitability zone around a
Q42: Why do astronomers search for signals of
Q43: Which of the following questions expresses Fermi's
Q44: What is sensitivity in the context of
Q45: Which of the following signals do astronomers
Q47: What is responsible for the oxygen in
Q48: Why is carbon so well suited to
Q49: How has the discovery of extremophiles changed
Q50: According to our present astronomical understanding,what astronomical
Q51: A colleague explains to you that the
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents