Ask Question
14 September, 16:11

Light enters water from air at an angle of 25° with the normal, Θ1. If water has an index of refraction of 1.33, determine Θ2.

A) 18.5°

B) 34.2°

C) 31.8°

D) 71.5°

+1
Answers (1)
  1. 14 September, 16:36
    0
    By Snell's law:

    η = sini / sinr. i = 25, η = 1.33

    1.33 = sin25° / sinr

    sinr = sin25° / 1.33 = 0.4226/1.33 = 0.3177 Use a calculator.

    r = sin⁻¹ (0.3177)

    r ≈ 18.52°

    Option A.

    God's grace.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Light enters water from air at an angle of 25° with the normal, Θ1. If water has an index of refraction of 1.33, determine Θ2. A) 18.5° B) ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers