Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Explore our Q&A platform to find reliable answers from a wide range of experts in different fields. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

Light moves from flint glass (n = 1.66) into
water at an angle of incidence of 26.0°.
a) What is the angle of refraction?
Answer in units of º.
b) At what angle would the light have to be
incident to give an angle of refraction of 90.0°
Answer in units of º.


Sagot :

Explanation:

Through Snell's Law, we can solve this.

The formula is:

n1 * sin(theta1) = n2 * sin(theta2)

n1 = flint = 1.66

n2 = water = 1.33

theta1 = 26.0°

theta2 = angle of refraction

Substituting these values in the formula,

1.66 * sin(26) = 1.33 * sin(x)

[1.66 *sin(26)] ÷ 1.33 = sin( x )

0.5471 = sin(x)

arcsin(0.5471) = x

33.17 = x

Therefore, the angle of refraction is 33.17°

b.) Using the same formula, we have:

1.66 * sin(x) = 1.33 * sin(90)

sin(x) = [1.33 * sin(90)] ÷ 1.66

sin(x) = 0.8012

x = arcsin(0.8012)

x = 53.2453°

Therefore, the light needs to have an angle of incident of 53.2453° in order to have a 90° angle of refraction.

Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. We're glad you visited Westonci.ca. Return anytime for updated answers from our knowledgeable team.