Sunlight reflected from the surface of a lake
A) is unpolarized.
B) tends to be polarized with its electric field vector parallel to the surface of the lake.
C) has undergone refraction by the surface of the lake.
D) tends to be polarized with its electric field vector perpendicular to the surface of the lake.
E) is totally polarized.
Question 2
Optical SETI is useful for
A) focused communication over short distances and in particular directions
B) communication over wide areas and large distances
C) communication over large distances in directions where interstellar dust is not present
D) communication with civilizations which surround similar stars to our Sun and hence have evolved to see visible radiation
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how
Sunlight shining through clouds, giving rise to crepuscular rays.
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
A container in the shape of a right circular cylinder with no top has surface area square feet.
Lake Zonation