Anna Litical is listening to FIZX - 1040 kiloHertz on the dial. FIZX broadcasts from a location of about 78 kilometers from her home. Regrettably for Anna, the presence of a long mountain range with steep cliffs reflects the signal to her home and causes destructive interference. The mountain cliffs are located directly behind her home relative to a line drawn from the broadcasting station to her home. What is the minimum distance that the mountain cliffs are located behind her home? (Assume that the reflected wave does not undergo a phase change upon reflection off the mountain.)

Q: For electromagnetic waves with each of these frequencies, find the wavelength in vacuum. In what…

A:

Q: Radio station KUTD broadcasts its radio signal at a frequency of 1.08E8 Hz from an antenna tower.…

A: Solution:Given:f = frequency of radio signal = 1.08 x 108 HzP = total power broadcasted by antenna =…

Q: You walk in a circle of radius 1.20 km around the midpoint of a pair of identical radio antennas…

A: Given, Radius, r=1.2 km Distance between the antennas, d=8 m Intensity , I=0.054 W/m2  in direction…

Q: A 75-kW radio station broadcasts its signal uniformly in all directions. (a) What is the average…

A: The intensity of the signal at a distance r from the antenna can be given as, Here, P is the power…

Q: A small 78.6 W light bulb radiates light (assume single wavelength, sinusoidal) uniformly in all…

A: Power, P = 78.6 W Distance, d = 2.539 m Intensity, I = ?

Q: On its highest power setting, a certain microwave oven projects 1 kW of microwaves onto a 32 cm by…

A: Step 1:Step 2:

Q: Radio station KSON in San Diego broadcasts at both 1240 kHz (AM) and 97.3 MHz (FM). a) Which of…

A:

Q: (a) Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and…

A: (a) Time taken by radio waves sent by Neil from the Moon to reach Earth.

Q: An isotropic point source emits light at wavelength 550 nm, at the rate of 230 W. A light detector…

A: Given Wavelength of light emitted λ = 550 nm Power of the source P = 230 W Distance from the source…

Q: Obtain the wavelengths in vacuum for (a) blue light whose frequency is 6.29 × 1014 Hz, and (b)…

A: Given:  frequency of blue light, νb= 6.29×1014 Hz frequency of orange light, νo = 5.06 × 1014 Hz the…

Q: Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 1.50…

A:

Q: An FM broadcast station has a transmitting antenna located 50 m above average terrain. How far away…

A:

Q: Obtain the wavelengths in vacuum for (a) blue light whose frequency is 6.46 x 1014 Hz, and (b)…

A:

Q: Name the type of waves which are used for line of sight (LOS) communication. What is the range of…

A: For communication purposes, radio waves are employed.  Line of sight communication means that the…

Q: If two light rays one has wavelength A = 680 nm and the other one has wavelength опе 2=530 nm. 6. a)…

A:

Q: Point-to-Point (PtP) terrestrial microwave link has the following parameters: Frequency = 928 MHz…

A: To calculate the minimum antenna heights above ground level (AGL) for the Point-to-Point (PtP)…

Q: During the Cold War, American submarines operated as "lone wolves" at extreme ocean depths for many…

A: Given:frequency of signals f=82 Hz signals: radio signal v=c=3*108  m/s

Q: Assume the radiation from a heat lamp is monochromatic, with a wavelength of 1.5 μm . If the lamp’s…

A:

Q: Take the ratio of these two areas

A: Given: Radius of Earth = 6300 km Distance from the sun = 1.2 × 108 km.

Q: Two resistors of 4 Ω and 12 Ω are connected in parallel across a 22V battery having internal…

A: Given that two resistors of 4 Ω and 12 Ω are connected in parallel across a 22V battery having…

Q: A woman is listening to her radio, which is 180 m from the radio station transmitter. (a) How many…

A: Given: d=180 c=3×108 f=1300×103 Formula used: Number of wavelengths=dλ=dcf Number of wavelength=dfc

Q: A 3.25 m diameter university communications satellite dish receives TV signals that have a maximum…

A:

Q: Anna Litical is listening to WFIZ when she observes that destructive interference occurs due to…

A:

Q: The antenna for an AM radio station is a 78.5-m-high tower whose height is equal to one-quarter the…

A:

Q: A father and his daughter are interested in the same baseball game. The father sits next to his…

A: We have to determine weather the daughter or the Father hears the home run first.

Q: Energy carried by an EM wave coming through the air can be used to light a bulb that is not…

A: Given : Maximum power (Po) = 1.05 W Angle (θ) = 71°

Q: The antenna for an AM radio station is a 73.5-m-high tower whose height is equal to one‑quarter the…

A:

Q: A radar pulse is reflected by an object 50 km away from the receiver. How long would it take for the…

A: Given that:Distance between object and receiver, d=50 km

Q: A 2.75 m diameter university communications satellite dish receives TV signals that have a maximum…

A:

Q: The call numbers for FM radio stations are given in MHz and range from 88 MHz to 108 MHz. Our…

A: The given data are as follows: The frequency of the college station, f = 91.1 MHz

Q: Microwaves are produced with an intensity of 1.42 W/m which are polarized at an angle of -84.1…

A:

Q: An anstonomer on a planet orbiting the star Deneb wants to differentiate the reflected light by…

A:

Q: A radio transmitter broadcasts 4.5 kW of power to a 3.2 m diameter ceceiver.   Calculate the…

A:

Q: A father and his daughter are interested in the same baseballgame. The father sits next to his radio…

A: sf=Distance of the father from the game=132 km=132000 msd=Distance of the daughter from the home…

Q: A tuning fork with "concert pitch" vibrates 440 times per second (440 Hz). Since the speed of sound…

A: The frequency and wavelength of any wave are related by the equation V=νλV is the velocity of the…

Q: A 3.00 m diameter university communications satellite dish receives TV signals that have a maximum…

A:

Q: Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 2.00…

A: Given: The intensity is I=2 W/m2. The power is P=10 W. The speed of light is c=3X108 m/s. The…

Q: You have decided to increase the detection range of your iphone14 with a high-gain, directional…

A: The expression for the amplitude of the magnetic field is given by the relation,

Q: Assume the mostly infrared radiation from a heat lamp is IR-B and acts like a continuous wave with…

A: Need to find: Intensity change in temperature.

Q: An anstonomer on a planet orbiting the star Deneb wants to differentiate the reflected light by…

A: Given,  Earth radius, r = 6400.0 km Distance from the sun, d = 1.3 x108 km

Q: Light is prepared so that it is polarized at 15.4 degrees with an intensity of 0.553 W/m2. The light…

A: concept

Q: A woman is listening to her radio, which is 178 m from the radio station transmitter. (a) How many…

A: Distance between woman and radio station: d = 178 m Women listening frequency of radio wave for part…

Q: Anna Litical is listening to WBBM - 780 KHz on the radio dial - when she observes destructive…

A: The formula for the wavelength is:

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.