Answered: A 18.0-mW (milli-Watts) laser puts out…

Science

Physics

A 18.0-mW (milli-Watts) laser puts out a narrow cylindrical beam 2.40 mm in diameter. What is the average rms E-field?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 12CQ: A 2.0-mW helium-neon laser transmits a continuous beam of red light of cross-sectional area 0.25...

See similar textbooks

Related questions

Q: Write your understanding about coherent waves. A taut string for which u = 5.00 x 10 kg/m is under a…

A: Note: As per Bartleby Guidelines, only first question will be answered. Please upload the second…

Q: A helium–neon laser, radiating at 632.8 nm, has a power output of 3.0 mW. The beam diverges…

Q: How many helium atoms, each with a radius of about 31 pm, must be placed end to end to have a length…

A: Given the radius of the helium atom is 31 pm. And the wavelength is given as 470 nm. Since the atoms…

Q: A 0.50-mW laser produces a beam of light with a diameter of1.5 mm. (a) What is the average intensity…

A: Given data: The power of laser beam is: P = 0.5 mW = 0.5×10-3 W The diameter of the beam is: d = 1.5…

Q: Given H = (30x - 40i)cos(10"t+500z)-(30â + 40)sin(10"t + 500z) mA/m, Find (a) th %3D dielectric…

A: Given H→ = (30x^ - 40y^)cos(1010t + 500z) - (30x^ + 40y^)sin(1010t+500z) mA/m

Q: Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 1.00…

Q: A 0.60 mW laser produces a beam with a cross section of 0.85 mm2. Assuming that the beam consists of…

Q: (II) A spherically spreading EM wave comes from an 1800-Wsource. At a distance of 5.0 m, what is the…

A: The expression for the energy per unit time per unit area is, I=12ε0cE02…

Q: Sunlight just outside Earth’s atmosphere has an intensity of 1.40 kW/m2. Calculate (a) Em and (b) Bm…

Q: Question 22 At the headend the transmit LASER reads 6 dBm, what is this value in mW? .078 mW 15.85…

A: We know, Power(in dBm)=10logPower(in mW)1 mW

Q: A 65 mW laser produces a polarized beam with a 2.2 mm diameter of 632.8 nm light. a) What is the…

Q: Our sun’s 5800 K surface temperature gives a peak wavelength in the middle of the visible spectrum.…

Q: A 60W60W monochromatic point source radiating equally in all directions in vacuum is being monitored…

A: The intensity of monochromatic radiation is

Q: What is the frequency of 560 nm yellow- green light?

A: Given: Wavelength of yellow-green light, λ=560nm=560nm×10-9mnm=5.6×10-7m

Q: The wavelength of yellow sodium light in air is 589 nm. (a) What is its frequency?

A: Wavelength is defined as the distance b/w the successive crests or troughs of a wave is called…

Q: The pupil of an eagle’s eye has a diameter of 6.0 mm. Two field mice are separated by 0.010 m. From…

A: The pupil of an eagle’s eye has a diameter of 6.0 mm. Two field mice are separated by 0.010 m. From…

Q: A totally reflecting disk has radius 8.00 mm and averagedensity 600 kg/m3. A laser has an average…

A: The radius r=8.00mm The average density =600kg/m3

Q: A helium-neon laser emits light with wavelength of 632 nm in vacuum. What is the frequency it…

A: The wavelength of the laser light is given as λ=632 nm=632×10-9 m

Q: Q3/A/We wish to coat a glass surface with an appropriate dielectric layer to provide total…

A: We know that impedance are n1= 377 ohm and n3 = 377/1.45 = 260 ohm Therefore n2 = (377 × 260)1/2…

Q: Frank D. Drake, an investigator in the SETI (Search for Extra-Terrestrial Intelligence) program,…

Q: A high-energy pulsed laser emits a 1.0-ns-long pulse ofaverage power 1.5 x 1011 W .The beam is…

A: Given: To determine the energy and the rms value of a high energy pulsed laser using the given…

Q: The cylindrical beam of a 12.8-mW laser is 0.940 cm in diameter. What is the rms value of the…

Q: Provide an insight on the reflection phenomena in transmission lines and the formation of Standing…

Q: What is the transverse coherence width of sunlight? the apparent angular diameter of the sun is 0.5…

Q: 4. (a) A fiber has modal dispersion of 10ns/km. If an instantaneous light pulse travelled 20 km in…

A: Given:Modal dispersion = 10 ns/kmSolution:a. For 20 km dispersion will be zero Here the light…

Q: A signal from of PLDT-Fibr travels through its optic cable at the speed of (2x108 m/s). a.) How long…

A: Given: Singal speed inside optical cable,u=2×108 m/s To determine: (a) Time taken by signal to…

Q: A 3.4 mW laser has a beam diameter of 5.0 mm. Assume it has uniform intensity a) What is the total…

A: Given information: Here, Pl is the laser’s power, dl is the laser’s diameter, dp is the pupil’s…

Q: A multimode step index fiber has a relative refractive index difference of 1% and a core refractive…

Q: Approximately what is the smallest detail observable with a microscope that uses ultraviolet light…

A: It is given that,

Q: In an EM wave traveling west, the B field oscillates vertically and has a frequency of 89.0 kHz and…

Q: Electromagnetic wave of unknown wavelength passes through the slit of width a =3.79 µm and the first…

A: Use diffraction condition and put the values this will give Wavelength of the electromagnetic wave.

Q: A 2.0-mW helium-neon laser transmits a continuousbeam of red light of cross-sectional area 0.25 cm2…

A: Given: The power of the laser is P=2 mW. The cross-sectional area is A=0.25 cm2. The expression…

Q: The maximum amplitude of an A.M. wave is found to be 15 V while its minimum amplitude is found to be…

A: Modulation index is defined as the ratio of change of amplitude of carrier wave to the amplitude of…

Q: Question 49 At the headend, the transmit DFB LASER reads 4.4 mW, what is 4.4 mW in dBm? 05.44 O 6.43…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: What is the wave's intensity 35 km from the antenna? Express your answer in watts per meter squared.

A: As antenna is emitting radiation uniformly in all directions,i.e, spherically symmetric. Here s is…

Q: A filter is used to obtain approximately monochromatic light from a white source. If the pass band…

Q: Two radio antennas Cand Rare 7.4 m apart are radiating in phase at 115 MHz. When a receiver is…

Q: A grating with 250 grooves/mm is used with an incandescent light source. Assume the visible spectrum…

Q: (a)The signal retrieved in an optical fiber reduces at its output to one-tenth of its input power.…

Q: An interference filter has a dielectric layer (refractive index 1.34) with a thickness of 0.805 μm.…

Q: circular loop of wire can be used as a radio antenna. If 21.6-cm-diameter antenna is located 2.00 km…

Concept explainers

de Broglie Equation

The sketch of matter waves is drawn below:

Question

A 18.0-mW (milli-Watts) laser puts out a narrow cylindrical beam 2.40 mm in diameter. What is the average rms E-field?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A 2.0-mW helium-neon laser transmits a continuous beam of red light of cross-sectional area 0.25 cm2. If the beam does not diverge appreciably, how would its rms electric field vary with distance from the laser? Explain.
A 15.8-mW laser puts out a narrow beam 2.40 mm indiameter. What are the rms values of E and B in the beam?
The cylindrical beam of a 12.8-mW laser is 0.940 cm in diameter. What is the rms value of the electric field? answer in V/m*
An LED with total power Ptot=910 mW emits UV light of wavelength 370 nm. Assuming the LED is 45% efficient and acts as an isotropic point source (i.e., emits light uniformly in all directions), what is the amplitude of the electric field, E0, at a distance of 2.5 cm from the LED?
A helium–neon laser, radiating at 632.8 nm, has a power output of 3.0 mW. The beam diverges (spreads) at angle u = 0.17 mrad . (a) What is the intensity of the beam 40 m from the laser? (b) What is the power of a point source providing that intensity at that distance?
If the polypropylene has a refractive index of 1.5, what is the wavelength in a CD laser light whose wavelength in the air is 790 nm?
A 5.0-mW laser beam has a circular cross section with a diameter of 0.50 mm. What is the maximum radiation pressure that this laser can exert on (a) a mirrored surface and (b) a black surface?
A 0.50-mW laser produces a beam of light with a diameter of1.5 mm. (a) What is the average intensity of this beam?
Yellow light has a wavelength l = 590 nm. How many of thesewaves would span the 1.35-mm thickness of a dime?
A radio transmitter, generates spherical radio waves. If you determine the intensity of the waves to be I a distance r from the transmitter, what is the intensity a distance of 2r from the transmitter?
A totally reflecting disk has radius 8.00 mm and averagedensity 600 kg/m3. A laser has an average power output Pav spread uniformlyover a cylindrical beam of radius 2.00 mm. When the laser beamshines upward on the disk in a direction perpendicular to its flat surface,the radiation pressure produces a force equal to the weight of the disk.(a) What value of Pav is required? (b) What average laser power is requiredif the radius of the disk is doubled?
What is the lowest frequency that would have a maxima reflection off a n=1.3 material with a345 nm thick n=1.6 coating in terahertz?