Question

An 8.0-mW laser beam emits a cylindrical beam of single-wavelength sinusoidal light 0.90 mm in diameter....

An 8.0-mW laser beam emits a cylindrical beam of single-wavelength sinusoidal light 0.90 mm in diameter. What is the rms value of the electric field in this laser beam? (ε0 = 8.85 × 10-12 C2/N • m2, μ0 = 4π × 10-7 T • m/A, c = 3.0 × 108 m/s)

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Concept - find the intensity using the power and area of cross-section of the cylindrical beam. Use the relation between intensity and the peak value of electric field to find the required solution as shown below***************************************************************************************************
This concludes the answers. If there is any mistake or omission, let me know immediately and I will fix it....

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A typical helium-neon laser found in supermarket checkout scanners emits 633-nm-wavelength light in a 1.1-mm-diameter beam...
A typical helium-neon laser found in supermarket checkout scanners emits 633-nm-wavelength light in a 1.1-mm-diameter beam with a power of 1.3 mW . A) What's the amplitude of the oscillating electric field in the laser beam? B) What's the amplitude of the oscillating magnetic field in the laser beam?
A 14.0-mW helium–neon laser emits a beam of circular cross section with a diameter of 2.90...
A 14.0-mW helium–neon laser emits a beam of circular cross section with a diameter of 2.90 mm. (a) Find the maximum electric field in the beam. ________kN/C (b) What total energy is contained in a 1.00-m length of the beam?________ pJ (c) Find the momentum carried by a 1.00-m length of the beam. _________kg · m/s
A 12.0-mW helium–neon laser emits a beam of circular cross section with a diameter of 2.35...
A 12.0-mW helium–neon laser emits a beam of circular cross section with a diameter of 2.35 mm. (a) Find the maximum electric field in the beam. kN/C (b) What total energy is contained in a 1.00-m length of the beam? pJ (c) Find the momentum carried by a 1.00-m length of the beam. kg · m/s
A 0.64-mW laser produces a beam of light with a diameter of 2.9 mm. (a) What...
A 0.64-mW laser produces a beam of light with a diameter of 2.9 mm. (a) What is the average intensity of this beam? W/m2 (b) At what distance does a 150-W light bulb have the same average intensity as that found for the laser beam in part (a)? (Assume that 5.0% of the bulb's power is converted to light.) cm
A laser emits light at power 6.01 mW and wavelength 633 nm. The laser beam is...
A laser emits light at power 6.01 mW and wavelength 633 nm. The laser beam is focused (narrowed) until its diameter matches the 1060 nm diameter of a sphere placed in its path. The sphere is perfectly absorbing and has density 5.00 × 103 kg/m3. What are (a) the beam intensity at the sphere's location, (b) the radiation pressure on the sphere, (c) the magnitude of the corresponding force, and (d) the magnitude of the acceleration that force alone would...
A laser emits light at power 5.49 mW and wavelength 633 nm. The laser beam is...
A laser emits light at power 5.49 mW and wavelength 633 nm. The laser beam is focused (narrowed) until its diameter matches the 1230 nm diameter of a sphere placed in its path. The sphere is perfectly absorbing and has density 5.00 × 103 kg/m3. What are (a) the beam intensity at the sphere's location, (b) the radiation pressure on the sphere, (c) the magnitude of the corresponding force, and (d) the magnitude of the acceleration that force alone would...
A small helium-neon laser emits red visible light with a power of 5.90 mW in a...
A small helium-neon laser emits red visible light with a power of 5.90 mW in a beam that has a diameter of 2.10 mm . a) What is the amplitude of the electric field of the light? b) What is the amplitude of the magnetic field of the light? c) What is the average energy density associated with the electric field? d) What is the average energy density associated with the magnetic field? e) What is the total energy contained...
A small helium-neon laser emits red visible light with a power of 3.80 mW in a...
A small helium-neon laser emits red visible light with a power of 3.80 mW in a beam that has a diameter of 2.70 mm. (a) What are the amplitudes of the electric and magnetic fields of the light? Emax =  V/m Bmax =  T (b) What are the average energy densities associated with the electric field and with the magnetic field? uE,av =  J/m3 uB,av =  J/m3 (c) What is the total energy contained in a 1.00-m length of the beam? J
A small laser emits light at power 6.88 mW and wavelength 441 nm. The laser beam...
A small laser emits light at power 6.88 mW and wavelength 441 nm. The laser beam is focused (narrowed) until its diameter matches the 1255 nm diameter of a sphere placed in its path. The sphere is perfectly absorbing and has density 4.00×103kg/m3. What is the beam intensity at the sphere's location? Calculate the radiation pressure on the sphere. Calculate the magnitude of the corresponding force. Calculate the magnitude of the acceleration that force alone would give the sphere?
A small helium-neon laser emits red visible light with a power of 5.90 mW in a...
A small helium-neon laser emits red visible light with a power of 5.90 mW in a beam that has a diameter of 2.60 mm . A)What is the amplitude of the electric field of the light? Express your answer with the appropriate units. B)What is the amplitude of the magnetic field of the light? C) What is the average energy density associated with the electric field? Express your answer with the appropriate units.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT