Homework Help: refraction and snells law

Posted by grady on Saturday, August 21, 2010 at 11:10am.

problem;what a fused quartz n=146 make angle 45 degree with normal line enter unknown material ligth ray refracted make a angle of 22 degree find index of unknown material. write a equation for problem ,using snells law and information given in the problem of this statement.

refraction and snells law - bobpursley, Saturday, August 21, 2010 at 11:17am
sin(Angleincidence)*nincidence= sin(Anglerefracted)*nrefracted
refraction and snells law - drwls, Saturday, August 21, 2010 at 11:20am
N(quartz) = 1.46, not 146.

Snells's law is
N1*sin(theta) = N2*sin(theta2)

In your case, solve for N2.

1.46 sin45 = N2*sin 22

N2 = 1.46*(.70711)/(.37461) = 1.8876
refraction and snells law - Anonymous, Wednesday, April 11, 2012 at 9:33pm
A beam of light passes from the fused quartz of a bottle (n = 1.46) into the ethyl alcohol (n = 1.36) that is contained inside the bottle. If the beam of the light inside the quartz makes an angle of 25.0° with respect to the normal of both substances, at what angle to the normal will the light enter the alcohol?

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