Question

a boy is in a swimming pool with index n2=v2. Knowing that the smallest index is 2, find the limiting angle of refraction

276

likes
1382 views

Answer to a math question a boy is in a swimming pool with index n2=v2. Knowing that the smallest index is 2, find the limiting angle of refraction

Expert avatar
Gerhard
4.5
92 Answers
Para encontrar o ângulo limite de refração, podemos usar a Lei de Snell, que relaciona os ângulos de incidência e refração aos índices de refração dos dois meios envolvidos: n_1\vezes\sin\theta_1=n_2\vezes\sin\theta_2 Dado que n_2=\sqrt{2} queremos encontrar o ângulo limite de refração à medida que o índice de refração aumenta de \sqrt{2} para um valor mais alto. Neste caso, à medida que o índice de refração aumenta, o ângulo de refração \teta_2 ​ se aproximará de 90 graus. Este ângulo é o ângulo crítico, que é o ângulo limite de refração quando a luz passa de um meio com índice de refração mais alto para outro com índice de refração mais baixo. Além deste ângulo crítico, a luz sofre reflexão interna total. Então, o ângulo limite de refração é \theta_2=90

Frequently asked questions (FAQs)
What is the result when you multiply a variable by the sum of two numbers minus their difference?
+
What is the derivative of f(x) = 3x^2 + 7x - 4?
+
Question: What is the mode, median, mean, range, and average of the following data set: 5, 8, 8, 10, 12, 15, 19?
+
New questions in Mathematics
A circular park has a diameter of 150ft. A circular fence is to be placed on the edge of this park. Calculate the cost of fencing this park if the rate charged is $7 per foot. Use π = 3.14.
2x-y=5 x-y=4
X^2 = 25
By differentiating the function f(x)=(x³−6x)⁷ we will obtain
3x+5y=11 2x-3y=1
Perpetual annuities are a series of payments whose duration has no end. Explain how can we calculate them, if they have no end?
In a store, a person carries 14 kilos of rice and 28 kilos of flour. In what ratio are the kilos found? (Remember to simplify until you reach an irreducible fraction)
How many anagrams of the word SROMEC there that do not contain STROM, MOST, MOC or CEST as a subword? By subword is meant anything that is created by omitting some letters - for example, the word EMROSCT contains both MOC and MOST as subwords.
Solve the equation: sin(2x) = 0.35 Where 0° ≤ x ≤ 360°. Give your answers to 1 d.p.
A recurring sequence is one where elements repeat after completing one standard. If the sequence AB8C14D96AB8C1... is recurring its twentieth term is equal to: (A) B. (B) 8. (C) A. (D) 6. (E) D.
Convert 9/13 to a percent
Use a pattern to prove that (-2)-(-3)=1
Determine a general formula​ (or formulas) for the solution to the following equation.​ Then, determine the specific solutions​ (if any) on the interval [0,2π). cos30=0
How to convert 45 kg into grams
48 kg of 30% sulfuric acid in a mixture of 10% and 40% sulfuric acid arose. How many kilograms were each of the original solutions?
0<x<2π aralığındaki f(x)=x÷2 fonksiyonunun 0 < x < 4π için grafiğini çiziniz ve 0<x<2n için Fourier seri dönüşümünü gerçekleştiriniz.
To paint a 250 m wall, a number of workers were employed. If the wall were 30 m longer, 9 more workers would be needed. How many were employed at the beginning?
Determine the general solution of the equation y′+y=e−x .
3(x-4)=156
The car with an irresponsible driver starts to brake when it goes through a red light. When passing the traffic light, he does so at a speed of 115 kph in the right lane. Further ahead, 70 meters from the traffic light, a child is crossing the street and falls. If the effect of the car's brakes is equivalent to a deceleration of magnitude 5.7m/s². Is the child hit by the car or not? How far from the traffic light does the car stop?