Viewing Single Post From: Homework Help Club

Viewing Single Post From: Homework Help Club
+Reaver	Sep 25 2008, 06:26 PM
Troll Posts: 8,614 Group: Advisor Member #47 Joined: June 9, 2005	Mr. Noogen Sep 25 2008, 05:43 PM Quote: 3) A beam of light is emitted in a pool of water from a depth of 62.5 cm. How far away, relative to the spot directly above it, must it strike the air-water interface in order that the light does not exit the water? ____ cm Quote: 4) A flashlight beam strikes the surface of a pane of glass (n = 1.58) at a 57° angle to the normal. What is the angle of refraction? ____ ° Problem 3: You want no light ot leave the water, meaning you want total internal reflection. Once you find that angle, just use trigonometry to find what horizontal distance you need to go travel so that X/62.5 = tan^-1(Critical Angle). Problem 4: n1s1 = n2s2 If I recall correctly. Air has 1.00 n, so basically you can do n1s1 = s2 and plug into there.
	Neon,June 8 2005 07:34 PM @Reaver: Me grammer is better than ur post count newbie. HJ, December 30 2008 06:20 PM You gave Inui his first (and last?) sexual experience, didn't you? That's historic. Favorite Staffer Summer 2008 -- Send me a Personal Message

Homework Help Club · Groups/Clubs