A light ray strikes a hexagonal ice crystal floating in the air perpendicular 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 correct when the incoming ray strikes the crystal face on the left head on?
A. A
B. B
C. C
D. D
E. E
Answer: C
You might also like to view...
From the beginnings of life on Earth, it took less than a billion years for single-celled organisms to evolve to multicellular organisms
Indicate whether the statement is true or false
In an experiment, a student brings up the rotational speed of a piece of laboratory apparatus to 30.0 rpm
She then allows the apparatus to slow down uniformly on its own, and counts 240 revolutions before the apparatus comes to a stop. The moment of inertia of the apparatus is known to be 0.0850 kg?m2. What is the magnitude of the retarding torque on the apparatus? A) 0.0425 N ? m B) 0.159 N ? m C) 0.0787 N ? m D) 0.000278 N ? m E) 0.0000136 N ? m
What is the magnitude of the electric field 2.8 cm from a tiny object that carries an excess charge of –16 nC? (k = 1/4??0 = 9.0 × 109 N ? m2/C2 )
A) 180,000 N/C B) 5100 N/C C) 1.8 × 1014 N/C D) -180,000 N/C E) -5100 N/C
Elements heavier than hydrogen and helium constitute about ________ of the mass of the Milky Way's interstellar medium.
A) 0.002 % B) 2 % C) 70 % D) 98%