A certain radio installation tracks airplanes by transmitting electromagnetic radiation of wave link 2.3 cm find the frequency of radiation? Find the time required for a pulse of radar ways to reach an airplane 4.8 km away and return?

The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW. (a) If such a laser beam is projected onto a circular spot 1.30 mm in diameter, what is its intensity? 1.88e2 W/m2 (b) Find the peak electric field strength. 1.255e-6 What is the relationship between intensity and electric field strength? V/m (c) Find the peak magnetic field strength. 3.765e-6 What is the relationship between electric field strength and magnetic field strength in an electromagnetic wave? T

What inductance must be connected to a 25 pF capacitor in an oscillator capable of generating 490 nm (i.e., visible) electromagnetic waves?

The rate at which information can be transmitted on an electromagnetic wave is proportional to the frequency of the wave. Is this consistent with the fact that laser telephone transmission at visible frequencies carries far more conversations per optical fiber than conventional electronic transmission in a wire? What is the implication for ELF radio communication with submarines?

An electromagnetic wave is normally incident on a flat surface. Assuming the power per unit area transmitted is S = 56.5 W/m2, and the surface is a perfect absorber, what is the radiation pressure (in nPa) on the surface? nPa Need Help? Read It the the line that through the tu

An electromagnetic wave is normally incident on a flat surface. Assuming the power per unit area transmitted is S = 61.4 W/m², and the surface is a perfect absorber, what is the radiation pressure (in nPa) on the surface? nPa Need Help? Read It

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