A cobalt laser emits a beam that has 319 kj of energy per mole. What is the wavelength of this light?
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A cobalt laser emits a beam that has 319 kj of energy per mole. What is...
Laser Safety A 0.90 mW laser emits a narrow beam of light that enters the eye. (A) How much energy is absorbed by the eye in 0.20 s? (B) The eye focuses this beam to a tiny spot on the retina, perhaps 5.0 μm in diameter. What is the average intensity of light at this spot? (C) Damage to the retina can occur if the average intensity of light exceeds 1.0×10−2W/cm2. By what factor has the intensity of this laser...
28. A red laser pointer emits light with a wavelength of 650 nm. a. What is the frequency of this light? b. What is the energy of 1 mole of these photons? 29. What are all the possible values for I and my when n=3?
A laser emits a narrow beam of light. The radius of the beam is 5.6 mm, and the power is 1.2 mW. What is the intensity of the laser beam?
A particular green laser pointer emits light with a wavelength of 532 nm , and it is advertised as having a power of 6 mW . 1. What is the energy of a single photon in this laser beam? 2.How many photons are emitted by this laser in 1 second?
A particular green laser pointer emits light with a wavelength of 532 nm , and it is advertised as having a power of 3 mW . Part A: What is the energy of a single photon in this laser beam? Part B: How many photons are emitted by this laser in 1 second?
A 7.20 mW helium neon laser emits a visible laser beam with a wavelength of 633 nm. How many photons are emitted per second?
A helium-neon laser emits light that has a wavelength of 632.8 nm. The circular aperture through which the beam emerges has a diameter of 0.200 cm. Estimate the diameter of the beam 14.0 km from the laser. m
A 5.20 mW helium neon laser emits a visible laser beam with a wavelength of 633 nm. how many photons are emitted per second? Express your answer as a number of photons per second.
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 green laser pointer emits light with a wavelength of 524 nm. What is the frequency of this light? What is the energy of one of these photons?