. Calculate the round-trip time delay for a signal to travel from a ground-based antenna at nadir up to a geostationary satellite and back down.

Q: 7. Why are electromagnetic waves unique? All electromagnetic waves are the same length. Each…

A: Electromagnetic waves are waves having electric field and magnetic field both perpendicular to the…

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A:

Q: Which of the following does not make use of radio waves? a. radiation therapy b. MRI scans c.…

A: Radio waves

Q: 5. Astronomers often observe a A = 21.1 cm microwave emission line from h What is the frequency of…

A:

Q: 23. If the period of a radio wave is doubled, its wavelength will be (1) halved (2) doubled (3)…

A:

Q: Arranging electromagnetic (EM) waves in an order of lower to higher frequencies may categorize these…

A: Required : To arrange the right order of EM waves.

Q: Calculate the ratio of the highest to lowest frequencies of electromagnetic waves the eye can see,…

A:

Q: 4. A spotlight shines onto a square target of area 0.35 m2. If the average (rms) strength of the…

A: Given data: The strength of the magnetic field is B=1.2×10-7 T. The area of target is A=0.35 m2. The…

Q: For a electromagnetic wave of 3GHz frequency, what wavelength will be required for the same…

A: Frequency of the EM wave, f = 3 GHz = 3 x 109 Hz Speed of the EM wave, c = 3 x 108 m/s   From the…

Q: 1. Ultraviolet radiation has a wavelength of 200 nm. What is the frequency of the radiation?

A: Part (1): Given: The wavelength of the light is 200 nm.

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A: Given:-6 What is the relationship between wavelength and frequency for electromagnetic radiation?…

Q: 2.8 For a variety of reasons, typical minimum elevation angles used by earth sta- tions operating in…

A: Draw a schematic diagram of one of the three frequency situations, in this case Ku-band (10° minimum…

Q: Radio waves and microwaves are used in therapy to provide “deep heating” of tissue because the waves…

A: The expression for speed of an electromagnetic wave is Here, f is the frequency of wave and c is…

Q: 5- Consider: radio waves (r), visible light (v), infrared light (i), x-rays (x), and ultraviolet…

A:

Q: 37.) Which of the following lists of electromagnetic waves is in the correct order from the lowest…

A: Since frequency is inversely proportional to wavelength. So a wave with higher wavelength will have…

Q: How long an antenna would have to be to receive a 1.4-MHz signal if it were 긍A antenna? Express your…

A: The size of a (1/2)λ antenna is approximately one-half of the wavelength of the desired frequency,…

Q: 1 Write the name of the appropriate electromagnetic wave from Longest to shortest wave. Use the word…

A: The order of decreasing wavelength of electromagnetic waves given as follows: Radio waves,…

Q: When we talk about electromagnetic energy, what parameter is used to describe it if it represents…

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Q: Design and simulate a rectangular microstrip antenna that operates at 2.4 GHz. using CST. the height…

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Q: Why is it not possible for the human eye to see the frequencies of infrared light? Explain.

A: Why is it not possible for the human eye to see the frequencies of infrared light?

Q: List the main types of electromagnetic waves in order öf increasing frequency. O radio waves,…

A: Make a table of the EM waves with their frequency as shown below:

Q: 4. Food can be sterilized by exposing it to high-frequency radiation. The higher the frequency of…

A:

Q: Satellite radios operate at frequency of 2.3 GHz. Comment on possible reasons of choosing such…

A: Radio wave  are electromagnetic wave of frequency between 30Hz and 300GHz.They are generated by an…

Q: 13. Which type of electromagnetic wave is associated with thermal energy?   a. infrared rays…

A: Infrared rays are associated with thermal energy

Q: 1. Which part of the electromagnetic spectrum has a higher frequency than ultraviolet waves? a.…

A: The  eleсtrоmаgnetiс  sрeсtrum  shоws  the  distributiоn  оf  eleсtrоmаgnetiс  rаdiаtiоn  bаsed  оn…

Q: 1.Explain why UV light can't be seen by the eye? 2.Explain why we can't hear sound frequency below…

A: Sense organs of human body has some limitations. This limitations hinder the body to go beyond a…

Q: Q4) A radio station broadcasts at a frequency of 760 kHz. At a receiver some distance Jr. antenna,…

A: The frequency of the wave f=760 kHz=760×103 Hz The magnetic field B=2.15×10-11 T The speed of…

Q: 1 What features make radio waves useful for transmission? O They are not absorbed by the atmosphere…

A: Radio wave is an electro magnetic wave radiation. As the wavelength of radio waves are longer than…

Q: : A geostationary satellite is located at 80°W. Calculate the azimuth angle for an earth station…

A:

Q: The warmth that you feel from a fire is thermal energy transmitted to you by which type of…

A: The transmission of thermal energy takes place in three modes. Conduction Convection And…

Q: A C AB AE B E D В AB E E В

A: E represents the direction of electric field B represents the direction of magnetic field c…

Q: 3. How will you distinguish radio reception from radio transmission? * Radio reception is the same…

A: Radio transmission is the process of producing radio waves for example a radio station . This radio…

Q: Determine the wavelength of the infrared carrier wave transmitted by a television remote control at…

A: Given:- Frequency of the wave = 38 kHz = 38000 Hz

Q: What common problems would arise during transmission and reception of radio waves? Explain the…

A: For the propagation and reception of radio waves, a transmitter and receiver are employed. When the…

Q: When electromagnetic waves travel from one medium to another, its speed changes (either increase or…

A:

Q: 2. Which of the following is often referred to as the electromagnetic waves tha travel through…

A: They are all(infrared, radio, microwave, ultraviolet rays ) travel through space at same speed .they…

Q: 2. Radio stations use radio waves to transmit electromagnetic signals. Which of the following best…

A: According to given options,The statement that best compares radio wave to other waves is given as…

Q: Explain why people who have the lens of their eye removed because of cataracts are able to see…

A: The lens of eye and cornea absorbs the ultraviolet- radiation and prevent them from retina. The…

Q: Radio waves and microwaves are used in therapy to provide “deep heating” of tissue because the waves…

A: Given: The penetration depth as the depth at which the wave intensity has decreased to 37% of its…

Q: If the heights of transmitting and receiving antenna are equal then LOS distance is_in mile. * 8.24…

A: Height of both antennas is equal, h1 = h2 = h

Q: Radio waves and microwaves are used in therapy to provide “deep heating” of tissue because the waves…

A: Frequency, f = 27 MHz

Q: 6. List the electromagnetic waves in order of increasing frequency.   a. radio waves,gamma…

A: The frequency of the radio waves,

Q: Can you see radio waves? Can you hear radio waves? Discuss this with people who still confuse sound…

A: One cannot hear or see an electromagnetic wave. There are many electromagnetic waves around us which…

Q: 4. A spotlight shines onto a square target of area 0.35 m2. If the average rms strength of the…

A: Given, Area of square target = 0.35 m2 Bavg  =  1.2 *10-7 T We have to find the energy transferred…

Q: Are the crystals in phased array transducers fired simultaneously? What device stores the image for…

A: 1. Phases array transducers are used to produce an array of ultrasounds. These transducers are fired…