The magnetic field in a beam of light with a diameter of 2.5 mm is found to have this form: B0z
The magnetic field in a beam of light with a diameter of 2.5 mm is found...
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
A laser emits a cylindrical beam of light 2.6 mm in diameter. If the average power of the laser is 2.6 mW , what is the rms value of the electric field in the laser beam? (Units for the answer is kV/m)
A laser emits a cylindrical beam of light 2.0 mm in diameter. Part A If the average power of the laser is 2.2 mW , what is the rms value of the electric field in the laser beam? Express your answer using two significant figures. Erms = kV/m
A laser emits a cylindrical beam of light 2.9 mm in diameter. Part A 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. Erms = kV/m
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.
A helium-neon laser emits a 2.0-mm-diameter laser beam with a power of 2.0 mW . Part A What is the amplitude of the electric field of the light wave? Express your answer with the appropriate units. Part B What is the amplitude of the magnetic field of the light wave? Express your answer with the appropriate units.
A laser emits a narrow beam of light. The diameter of the beam is 3 mm, and the power is 10 mW. What is the intensity of the laser beam? The answer is 1400 W/m^2. Please show step by step how to get the answe to this problem showing formulas.
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 2.0 mW laser produces a beam of light with a diameter of 2.7 mm shines its light on a perfectly absorbing surface. How much energy does the surface receive in 14 s ? What is the radiation pressure exerted by the beam?