What is the wavelength of an electromagnetic wave whose frequency is 70.0 MHz ?

Electromagnetic radiation having a 14.5 µm wavelength is classified as infrared radiation. What is its frequency (in Hz)?

An electromagnetic wave of frequency 91.5 MHz travels in crown glass at a speed of 1.972x108 m/s. What is the wavelength of this wave while it is inside the glass?

Write equations for both the electric and magnetic fields for an electromagnetic wave in the red part of the visible spectrum that has a wavelength of 709 nm and a peak electric field magnitude of 2.6 V/m. (Use the following as necessary: t and x. Assume that E is in volts per meter, B is in teslas, t is in seconds, and x is in meters. Do not include units in your answer. Assume that E = 0 and B = 0 when x = 0 and t = 0.) E(x, t) B(x, t) = =

An electromagnetic wave has a peak electric field of 3000 V/m. What is the peak intensity of the wave?

A certain electromagnetic wave has an average intensity of 6 x 104 W/m2. What is the average energy density of the wave? High O3x10-8 J/m³ 2x 10-4J/m³ O6x 104 J/m³

Which of the following lists correctly shows the regions of the electromagnetic spectrum in order of increasing frequency?  a Radio waves, infrared, microwaves, visible, ultraviolet, X-rays, gamma rays  b Radio waves, infrared, microwaves, visible, ultraviolet, gamma rays, X-rays  c Radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays  d Radio waves, infrared, microwaves, ultraviolet, visible, X-rays, gamma rays

Find the wavelengths of electromagnetic waves with the following frequencies. (Assume the waves are traveling in a vacuum.) a) 4.50 ✕ 1019 Hz (Enter your answer in pm.) b) 4.00 ✕ 109 Hz (Enter your answer in cm.)