Homework Help: math

Posted by claudia on Tuesday, May 15, 2007 at 1:53am.

Snell's law of refraction can be written as sin i = n sin r, where n is the refractive index from air to water, i is the angle of incidence, and r is the angle of refraction.
In an experiment where a ray of light is directed from air into water, if the angle of incidence is 46 degrees, choose 1 option which gives the angle of refraction predicted by Snell's law, correct to 2 significant figures, given that n = 1.208.
A) 0.84 degrees
B) 0.85 degrees
C) 23 degrees
D) 36 degrees
E) 37 degrees
F) 45 degrees
G) 46 degrees
H) 47 degrees

Can anyone help please?

For Further Reading

math - Reiny, Monday, May 14, 2007 at 12:45pm
have you tried substituting your given values in the given formula?

The correct answer is obtained in one step.

math - HALEY, Monday, May 14, 2007 at 8:22pm
1 STEP

Is the answer E? 37 degree?

yes it is.
36.55º which to 2 significant figures is 37º.

No one has answered this question yet.

Answer this Question

Related Questions

math - Snell's law of refraction can be written as sin i = n sin r, where n ...
Physics Word Problem - using Snell's Law (sin(theta1)/sin(theta2) = v1/v2 ...
Physics Word Problem - using Snell's Law (sin(theta1)/sin(theta2) = v1/v2 ...
Trig - I don't know the physics behind Snell's Law, but I can do the ...
Science - What types of waves can be refracted? Under what circumstances does ...
Physics - A beam of light is incident on the surface of clear ice at 60 degrees ...
Physics - A ray of light stikes a flat 2 cm thick block of ice (n=1.5) at an ...
Physics - The incident ray comes at 30 degrees to normal at the air/glass ...
physics - calculate the refractive index for a ray travelling from air to water ...
gr10 science - What is the index of refraction of a refractive medium f the ...

For Further Reading

First Name:
School Subject:
Answer: