21.8 A dish antenna with a diameter of 17.2 m receives (at normal incidence) a radio signal from a distant source, as shown in the figure below. The radio signal is a continuous sinusoidal wave with amplitude Emax = 0.28 µV/m. Assume the antenna absorbs all the radiation that falls on the dish. (A dish antenna on top of a tall tower extending above the trees. The dish points upward and to the left. Three parallel wavy arrows come downward and to the right toward the dish.) (a) What is the amplitude of the magnetic field in this wave? T(b) What is the intensity of the radiation received by the antenna? W/m2(c) What is the power received by the antenna? W

Q: A laser beam of intensity I reflects from a flat, totally reflecting surface of area A, with a…

A: The expression for the beam’s radiation pressure is,

Q: A certain electromagnetic field traveling in glass has a maximum electric field of 1,299 V/m. What…

A: Given data The maximum electric field is given as Emax = 1299 V/m. The speed of light is given as c…

Q: A 2.40–m–diameter university communications satellite dish receives TV signals that have a maximum…

A: Given Data : The diameter of the university communications satellite dish is given as d = 2.40m The…

Q: he electric field wave associated with an EM wave is given by E(x,t)= 250N/C sin (wt - 4.85 x 10^7…

A: Electric field associated with an EM wave,

Q: A square, perfectly reflecting surface is oriented in space to be perpendicular to the light rays…

A: Given : edge length of square , a = 2.0 m            Distance of mirror from the sun, dm = 3.0 ×1011…

Q: Is it necessary for a transmitting antenna to be at the same height as that of the receiving antenna…

A: In line – of – sight communication, between the transmitter and the receiver there is no physical…

Q: A 2.40–m–diameter university communications satellite dish receives TV signals that have a maximum…

A:

Q: Given the following electromagnetic wave, calculate the energy per unit of time and unit of area…

A: This problem can be solved using the formula for intensity of electromagnetic wave.

Q: A source of electromagnetic waves radiates power uniformly in all directions at a single frequency.…

A:

Q: TM electromagnetic waves incidence from glass medium n1 =1.5 into the air (n2 =1.0) with incidence…

A:

Q: What is the wavelength of an FM radio station that broadcasts at 101.1 MHz?Assume speed of light c =…

A: Given: The frequency is f=101.1 MHz. The speed of light is c=3X108 m/s. The expression for…

Q: The intensity produced by a long cylindrical light source at a small distance r from the source is…

A: Consider a cylindrical light source. Let dA be defined as the area that making a solid angle dω from…

Q: Two laser beams with wavelengths λ1 = 556 nm and λ2 = 604 nm are aimed at the same point. The…

A:

Q: The electric field of an electromagnetic wave propagating through a vacuum Is given by: E = 250 sin…

A: Given that: E=250 sin(2π×1012t-23π×104) i^ V/m To determine: (i) Intensity carried by the wave (ii)…

Q: An anti-reflection (AR) coating is often applied to the surface of eye- glass lenses in order to…

A: We can calculate the dielectric constant (r) by using a simplified capacitor model, where r is the…

Q: Two friends are playing with hand-held radio transceivers which have dipole antennas. If the antenna…

A: a) p =pmax(cos26o)2  = 100 % *0.8078 = 80.78 %

Q: Consider a plane, monochromatic, electromagnetic wave traveling in a homogeneous medium. Its…

A: Given the magnetic fieldBx = 0By= 0Bz= B0cos(9y + 2× 109t) y is in metre and t is in second.find…

Q: Consider a plane, monochromatic, electromagnetic wave traveling in a homogeneous medium, with index…

A:

Q: Create a shield coating layer

A:

Q: The wavelength of an electromagnetic wave is 3 m, and its frequency is 108 Hz. What is the index of…

A: The Refractive index is a dimensionless number that indicates how much a light ray bend in a…

Q: A circular radar antenna on a Coast Guard ship has a diameter of 2.10 m and radiates at a frequency…

A:

Q: Problem 11: Part (a) Calculate the value of P, in newtons per square meter. P = ______ Part (b)…

A:

Q: Problem 1: a. Determine the polarization state of a plane EM wave with electric field E = 3 sin (@t…

A: (a) Let E denotes the electric field, ω denotes the angular velocity, β denotes the wave propagation…

Q: A certain electromagnetic field traveling in glass has a maximum electric field of 1,204 V/m. What…

A: we know that in vacuum- Fe=Fm                                     qE= qvB…

Q: The antenna for an AM radio station is a 69.5-m-high tower whose height is equal to one-quarter the…

A: Step 1:To find the frequency f at which the AM radio station transmits, we can use the formula for…

Q: An AM radio station broadcasts isotropically (equally in all directions) with an average power of…

A:

Q: A state trooper’s car sends out a radar signal at a frequency of 11.5 GHz. Find the wavelength of…

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

A:

Q: Unpolarized light is sent towards 3 polarizers. The first polarizer is aligned horizontally. The…

A: Unpolarized light is sent towards 3 polarizers. The first polarizer is aligned horizontally. The…

Q: space

A: Given: Maximum radiation pressure =? Solar constant = 1350 W/m2

Q: A point source emits monochromatic electromagnetic waves into air uniformly in all directions. At a…

A: At 5 m electric field is 20 V/m

Q: 1- calculate the intensity?, if electromagnetic wave moving through space has electric field given…

A: 1)The electromagnetic wave moving through space has an electric field given by :E = 80 Sin{…

Q: A uniform plane wave of 200MHz incident on a thick copper plate delivers an amplitude of 1.0mV/m on…

A:

Q: The magnetic field of a sinusoidal EM wave satisfies the following equationB(t , x) = (4.5 uT)…

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: Suppose an isotropic light source has a power of 59 W and that its light is normally incident on a…

A:

Q: Consider a green tree leaf of area 29.5 cm2 absorbing red light coming from the Sun as a plane wave…

A: Given that:Emax=0.35 kV/m=0.35×103 V/mA=0.29 cm2=0.29×10-4 m2t=1 hr=3600 secεo=8.85×10-12 F/mλ=650…

Q: Light with an intensity of (1.8x10^0) kW/m2 falls normally on a surface and is completely reflected.…

A: Radiation Pressure is given by , P = 2 x I / c where I is the intensity and c is the speed of light.

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

A:

Q: Consider a green tree leaf of area 29.6 cm2 absorbing red light coming from the Sun as a plane wave…

A: Area of the green tea leaf (A)=29.6 cm2 Wavelength of the electromagnetic waves λ=650 nm Amplitude…

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:

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.