Need a typed answer by keyboard Handwritten answer not allow.

Solve fast

DDDDDDCI All these technologies use radio waves. including low-frequency microwaves. All these technologies use radio waves, including high-frequency microwaves. All these technologies use a combination of infrared waves and high-frequency microwaves. Microwave ovens emit in the same frequency band as some wireless Internet devices. The radiation emitted by wireless Internet devices has the shortest wavelength of all the technologies listed above. All these technologies emit waves with a wavelength in the range 0.10 to 10.0 to. All the technologies emit waves with a wavelength in the range 0.01 to 10.0 km. The frequency and wavelength of EM waves can vary over a wide range of values. Scientists refer to the full range of frequencies that EM radiation can have as the electromagnetic spectrum. Electromagnetic radiation is more common than you think. Radio and TV stations emit radio waves when they broadcast Electromagnetic waves are used extensively in modern technology. Many devices are built to emit and/or receive EM waves at a very specific their programs; microwaves cook your food in a microwave frequency, or within a narrow band of frequencies. Here are some examples followed by their frequencies of operation: oven; dentists use X rays to check your teeth. Even though they have different names and different applications, these . garage door openers: 40.0 MHz, types of radiation are really all the same thing: . standard cordless phones: 40.0 to 50.0 MHz. electromagnetic (EM) waves, that is, energy that travels in baby monitors: 49.0 MHz, the form of oscillating electric and magnetic fields. . FM radio stations: 88.0 to 108 MHz. . cell phones: 800 to 900 MHz, . Global Positioning System: 1227 to 1575 MHz, microwave ovens: 2450 MHz, . wireless Internet technology: 2.4 to 2.6 GHz. Part B Which of the following statements correctly describe the various applications listed above? Check all that apply. View Available Hint(s) Hint 1. Frequency and wavelength of an EM wave Recall that for any EM wave of frequency f and wavelength > there exists a relation v = >f, where u is the wave speed. All EM waves that travel through a vacuum have the same speed as light: v = c = 3.00 x 10 m/s. Hint 2. Hertz, megahertz, and gigahertz Recall that 1 MHz = 10" Hz and 1 GHz = 1000 MHz = 10" Hz. Hint 3. Meters and kilometers Recall that 1 km = 103 m