A light ray strikes a hexagonal ice crystal floating in the air at a 30° angle to one face, as shown below. The hexagonal faces of the crystal are perpendicular to the plane of the page. All the rays shown are in the plane of the page, and nice = 1.30. Which outgoing ray is the correct one?
A. A
B. B
C. C
D. D
E. E
Answer: B
You might also like to view...
A new electric power plant has an efficiency of 42%. For every 100 barrels of oil needed to run the turbine, how many are essentially lost as waste heat (in barrels of oil) to the environment?
a. 21 b. 42 c. 58 d. 10 e. 79
The star Betelgeuse appears red; the star Rigel appears blue. What accounts for this difference? a. Betelgeuse and Rigel have different chemical compositions
b. Betelgeuse is moving away from Earth, Rigel is moving toward Earth. c. Betelgeuse is moving toward Earth, Rigel is moving away from Earth. d. The surface of Betelgeuse is hotter than the surface of Rigel. e. The surface of Betelgeuse is cooler than the surface of Rigel.
The Andes and the Sierra Nevada Mountains began to form during the Mesozoic due to
A) the formation of the Atlantic Ocean. B) subduction of Pacific oceanic crust beneath North and South American continental crust. C) rifting between North America and Africa. D) meteorite bombardment in Mexico.
From hottest to coolest, the order of the spectral types of stars is
A) OBAFGKM. B) OBAGFKM. C) ABFGKMO. D) OMKGFBA. E) ABCDEFG.