A low-power laser used in a physics lab might have a power of 0.60 mW and a beam diameter of 3.3 mm.
(a) Calculate the average light intensity of the laser
beam.
_________________ W/m2
(b) Compare it to the intensity of a light bulb producing 40 W
light viewed from 2.4 m.
Ilaser / Ibulb =
___________
A low-power laser used in a physics lab might have a power of 0.60 mW and...
A low-power laser used in a physics lab might have a power of 0.50mW and a beam diameter of 3.0mm. Calculate (a) the average light intensity of the laser beam, and (b) compare it to the intensity of a lightbulb producing 100-W light viewed from 2.0m. May you please show the work; thank you!
A 0.60 mW laser produces a beam of light with a diameter of 2.0 mm . 1.What is the average intensity of this beam? Iav = ___kW/m2 2.At what distance does a 160 W lightbulb 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.) r=___cm
A 0.60 mW laser produces a beam of light with a diameter of 1.7 mm . the average intensity of this beam 0.26 kW/m2 At what distance does a 130 W lightbulb 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.)Express your answer using two significant figures. r=__________cm
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW. If such a laser beam is projected onto a circular spot 2.617 mm in diameter, what is its intensity?
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW. (a) If such a laser beam is projected onto a circular spot 3.96 mm in diameter, what is its intensity? W/m2 (b) Find the peak electric field strength. V/m (c) Find the peak magnetic field strength.
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mw. (a) If such a laser beam is projected onto a circular spot 4.62 mm in diameter, what is its intensity? W/m2 (b) Find the peak electric field strength V/m (c) Find the peak magnetic field strength. Additional Materials
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW. If such a laser beam is projected onto a circular spot 8.754 mm in diameter, what is its intensity?
He-Ne lasers are often used in physics demonstrations. They produce light of wavelength 633 anime and a power of 0.800 mW spred over a cylindrical beam 1.35 mm in diameter (although these quantities can vary). A. what is the intensity of this laser beam? B. what is the maximum value of the electric field? C. what is the maximum value of the magnetic field? Part A Constants What is the intensity of this laser beam? He-Ne lasers are often used...
A He-Ne laser beam has power 1 mW and beam diameter 1 mm. Determine the electric field amplitude in the light wave, assuming that the light intensity is uniform across the beam profile.
A laser emits a cylindrical beam of light 2.6 mm in diameter. If the average power of the laser is 2.4 mW, what is the rms value of the electric field in the laser beam? Express your answer using two significant figures.