El ángulo critico se define como aquel ángulo de incidencia para el cual
el ángulo de refracción es 90. Si hago ø2-90° en la ley de Snell, podemos
ver que el ángulo critico viene dado por: n1 senø crítico=n 2 sen 90°=n2 (1)
Luego tenemos que sen ø critco=n2 / n¹
Un vidrio determinado posee un indice de refracción n=1.50. Cuál es el
ángulo critico para la reflexión total de la
luz que sale de este vidrio y entra en el aire,
para el cual, n=1?
a) 45°
b) 42°
c) 32°
D) 30°

First, launch the video below. you will be asked to use your knowledge of physics to predict the outcome of an experiment. then, close the video window and answer the question at right. you can watch the video again at any point. part a as in the video, we apply a charge +q to the half-shell that carries the electroscope. this time, we also apply a charge –q to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? view available hint(s) as in the video, we apply a charge + to the half-shell that carries the electroscope. this time, we also apply a charge – to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? it deflects more than it did at the end of the video. it deflects the same amount as at end of the video. it does not deflect at all. it deflects less than it did at the end of the video. submit

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Match these items. 1. coulombs __force 2. ohms __emf 3. centimeters __resistance 4. newtons __charge 5. volts __length