diamond n-3.42. what in the .pedof 24. (6 points) What is the eritical angle for

Question

diamond n-3.42. what in the .pedof 24. (6 points) What is the eritical angle for quarta (-1.5) immersed in oil (a-1.1) 25. (6 points) Find the average total energy density of an electromagnetic wave whose rms value is Erm, = 720mn. The permittivity of free space has a value of 8.85 x 10-12ca/(Nma) 26. (6 points) A coil of 50 turns is pulled in 0.02 seconds from between the poles of a magnet where its area includes magnetic flux of 31 × 10-5Tm2 to a place where its area includes magnetic flux of 2 Determine the a

Explanation / Answer

23)

n = c/v

2.42 = (3*10^8)/v

v = 1.24*10^8 m/s

Answer: 1.24*10^8 m/s

24)

sin c = nr/ni

ni is refractive index of incident medium

nr is refractive index of refracted medium

sin c = nr/ni

sin c = 1.1 / 1.5

sin c = 0.733

c = 47 degree

Answer: 47 degree

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