Numerical Constants Vsound in air = 343 m/s speed of light c= 3 x 10° m/s nair 1 nwater = 1.33 nglass = 1.5 Electromagnetic waves: f = v V =- n Standing waves on a string: 2L T m = 1, 2, 3,... v = V (m/L) m fm -m = mf 2L Standing waves in a vibrating column of air Tube closed at one end: 1m 4L m = 1, 3, 5 ... fm = m = mf, m 4L 2L Tube open (or closed) at both ends: m = 1. 2. 3. 4, 5
Numerical Constants Vsound in air = 343 m/s speed of light c= 3 x 10° m/s nair 1 nwater = 1.33 nglass = 1.5 Electromagnetic waves: f = v V =- n Standing waves on a string: 2L T m = 1, 2, 3,... v = V (m/L) m fm -m = mf 2L Standing waves in a vibrating column of air Tube closed at one end: 1m 4L m = 1, 3, 5 ... fm = m = mf, m 4L 2L Tube open (or closed) at both ends: m = 1. 2. 3. 4, 5
Chapter16: Electromagnetic Waves
Section: Chapter Questions
Problem 98AP: A radio station broadcasts its radio waves with a power of 50,000 W. What would be the intensity of...
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A 41-cm length of wire has a mass of 6 g. It is stretched between two fixed support and is
under a tension of 160 N. What is the fundamental frequency of this wire? (I know the answer is 127 Hz I just really need to see the process. Please label variables for equations. I've included the equations we have been given in an image)
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