In order to maximize power, most broadcast antenna have a length that is 1/4 of the wavelength of the electromagnetic waves being transmitted. If a broadcast antenna is 16 m long, what is the frequency of its transmitted waves? f = Hz

The intensity of electromagnetic energy from the Sun reaching the Earth is 1,390 W/m?. Earth is about 1.5 x 1011 m from the Sun and Saturn is about 10 times further, how much power would a 1.00 m2 solar panel receive at the distance of Saturn? Provide the solution:

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

What is the relationship between the electromagnetic wave frequency and the distance that it can cover? Select one: a. The lower the frequency, the shorter the distance it can travel. b. The electromagnetic wave frequency does not affect the distance travelled by the wave. c. The higher the frequency, the shorter the distance it can travel.

An electromagnetic wave with a frequency 7.50x1014 Hz propagates with a speed of 2.00x108 m/s in a certain piece of glass. What is The wavelength of the wave in glass? (nm)

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?

Wave length of electromagnetic wave is given below. What is the energy of the violet light in units of 10-19 Joules? 10 10 10 10 10 1012 Radio waves Micro Intrared Ultra violet Gamma Rays X-Rays Visible Light 7 * 10-7 4 * 10-7

You and your friend Bruce are experimenting with a red lamp shade and blue lamp shade. You place lamp shades individually over a 120-W light bulb. Assume that the light radiates from the lamps uniformly and 9.5% of their power is converted to light. (a) What is the average intensity of the light at 1.6 m from the red (1 = 710 nm) lamp shade? W/m2 (b) Is the average intensity of the blue (1 = 480 nm) lamp shade at 1.8 m greater than, less than, or equal to the intensity calculated in part (a)? greater than less than O equal to

At a certain geographic location, light intensity from the Sun is 900 J/(m² .s). This means that sunlight delivers 900 joules of energy to each square meter of ground in each second. Suppose solar panels are installed on the roof of a house to generate electricity from sunlight. The total area of the solar panels is 25 m². Calculate the maximum electric energy that can be generated per second: Unfortunately, solar panels are not 100% efficient at converting electromagnetic energy to electricity. Suppose the solar panels have an efficiency of 15%. This means that only 15% of the electromagnetic energy incident on the solar panels is converted to electricity, while the rest is reflected or converted to thermal energy. Given this efficiency, calculate the electric energy that can be generated per second:

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) = =