A laser emits a narrow beam of light. The radius of the beam is 8.3 mm, and the power is 4.3 mW. What is the intensity of the laser beam? Number i Units >
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- Infared light has a lower frequency than visible light. What is the frequency of IR light that has a wavelength of 680 nm?A 41.7 mW laser puts out a narrow beam 2.00 mm in diameter. What is the rms value of E in the beam? ? Erms = V/m Submit Request Answer What is the rms value of B in the beam? ? Brms = TA laser beam has an average intensity, S = 8,005.9 W/m2. What is the magnitude of the rms magnetic field, Brms in mT, component of the electromagnetic waves emitted by this laser? 1.0 mT = 10-6 T. Please round your answer to one decimal place. Equations: cB2 S= TIMS Ho H₂=47x10-¹Tm/ A c= 3.0x108 m/s
- The average Earth-Sun distance is 1.00 astronomical unit (AU). At how many AUS from the Sun is the intensity of sunlight 1/81 the intensity at the Earth? AUA 0.50-mW laser produces a beam of light with a diameter of1.5 mm. (a) What is the average intensity of this beam?dl L = U- RI dt Solve this equation for I(t) with I(0) =lo. What is I(t) as t approaches infinity?
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