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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- A laser emits a narrow beam of light. The radius of the beam is 3.4 mm, and the power is 1.6 mW. What is the intensity of the laser beam?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 = T
- See attached images Logs and Exp.The average Earth-Sun distance is 1.00 astronomical unit (AU). At how many AUs from the Sun is the intensity of sunlight 1/49 the intensity at the Earth? AUThe average Earth–Sun distance is 1.00 astronomical unit (AU). At how many AUs from the Sun is the intensity of sunlight 1/49 the intensity at the Earth?
- Satellite TV is broadcast from satellites that orbit the earth. Their antennas broadcast a 15 kW microwave signal that covers most of North America, an area of about 2.5 × 107 km2. What is the total power that strikes a 46-cm-diameter ground-based dish antenna?Suppose that a laser has a power output of 0.41 mW. If the laser projects a circular spot on a wall that has a diameter of 2.6 mm, what is the intensity of the beam in W/m2 at that spot? Round your answer to the nearest tenth of a W/m2.Your 5G phone is sending an RF signal at a wavelength of 5.72 mm. What frequency is the wave (in gigahertz = 1E9 Hz)?
- 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?A radio station utilizes frequencies between commercial AM and FM. What is the frequency (in megahertz) of a 11.23 m wavelength channel?The intensity of solar radiation that falls on a detector on Earth is 1.00 kW/m². The detector is a square that measures 6.11 m on a side and the normal to its surface makes an angle of 30.0° with respect to the Sun's radiation. How long will it take for the detector to measure 436 kJ of energy? S