Find the acceptance angle of a material which has a numerical aperture of 0.707 in air.Select one:a. 90b. 30c. 45d. 60
Question
Find the acceptance angle of a material which has a numerical aperture of 0.707 in air.Select one:a. 90b. 30c. 45d. 60
Solution
The acceptance angle (θ) of a material can be found using the formula:
θ = arcsin(NA)
where NA is the numerical aperture.
Given that the numerical aperture (NA) is 0.707, we can substitute this value into the formula:
θ = arcsin(0.707)
Using a calculator, the arcsin(0.707) is approximately 45 degrees.
So, the acceptance angle of the material is 45 degrees.
Therefore, the correct answer is c. 45.
Similar Questions
step-index fibre has a numerical aperture of 0.26, a core refractive index of 1.5 and a core diameter of 100 micrometer. Calculate the acceptance angle.Question 1Answera.1.47° b.
15.calculate the angle af refraction as for the given information in the question.40.574.644.6
Find the critical angle for liquid-air interface if the refractive index of the liquid is 2.30°45°60°25°
An optical fiber has a numerical aperture of 0.20 and a cladding refractive index of1.59. Determine: (a) the acceptance angle for the fiber in water which has a refractive index of 1.33;(b) the critical angle at the core–cladding interface. Comment on any assumptions made about thefiber.
Find the measure of the unknown angle.71°?82°130°30°
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.