What are the frequency and wavelength of a uv photon
When a person visits the local tanning salon, they absorb photons of ultraviolet light (UV) to get the desired tan. What are the frequency and wavelength of a UV photon whose energy is 6.5 x 10^-19 J?
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A diffraction grating with 345 lines/nm is 1 m in front of a screen. What is the wavelength of light whose first-order maxima will be 16.4 cm from the central maximum on the screen?
A 192 g piece of copper is heated to 100.0C in a boiling water bath and then dropped into a beaker containing 75.0 ml of water at 4.0C. What is the final temperature of the copper and water after they come in thermal equilibrium?
The second order maximum produced by a diffraction grating with 560 lines per centimeter is at an angle of 3.1 degrees. What is the wavelength of the lights that illuminates the grating?
The same calorimeter was used for the dissolution of 8.86 g sample of lithium chloride in 100.0 mL of water at 22.2 °C. When the salt was dissolved, the temperature of the solution was 39.5°C.
A mixture of immiscible liquids (both water-insoluble) is subjected to steam distillation. At 90 degrees C, the vapor pressure of pure water is 526 mm Hg.
If the outer surface of the tube has an emissivity of 0.9, and if it sees the surroundings at a temperature of 10oC, what is the net radiative heat transfer?
Light of frequency 9.95 x 10^ 14 hz ejects electrons from the surface of silver. IF the maximum kinetic energy of the ejected electrons is .18 x 10^ -19 J what is the work function of silver?
To what temperature must the strips be heated if they are to dissipate 1500 W of heat to a room at 25?C? Assume the strips dissipate heat from both sides.
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