Estimate the energies of photons with wavelengths

Reference no: EM131019749

The human retina has three types of receptor cones, each sensitive to a different range of wavelengths of visible light, as shown in this figure (the colors are merely to differentiate the three curves from one another; they do not indicate the actual colors represented by each curve):

(a) Estimate the energies of photons with wavelengths at the maximum for each type of cone.

(b) The color of the sky is due to scattering of solar light by the molecules of the atmosphere. Lord Rayleigh was one of the first to study scattering of this kind. He showed that the amount of scattering for very small particles such as molecules is inversely proportional to the fourth power of the wavelength. Estimate the ratio of the scattering efficiency of light at the wavelength of the maximum for the "blue" cones, as compared with that for the "green" cones.

Reference no: EM131019749

Questions Cloud

What is its characteristic wavelength : An electron is accelerated through an electric potential to a kinetic energy of 18.6 keV What is its characteristic wavelength?

What is his approximate body mass index : What is his approximate body mass index? Find an inequality describing all weights W that Francis can have and be in the low risk category.

What experiments could a scientist conduct here on earth : The Fraunhofer lines are attributed to absorption of certain wavelengths of the Sun's "white" light by gaseous elements in the Sun's atmosphere. Describe the process that causes absorption of specific wavelengths of light from the solar spectrum.

Which of these choices is not a type of local government : Congressional staff have an important role in Congress because members rely on staff to study the issues and provide them with essential information.

Estimate the energies of photons with wavelengths : The human retina has three types of receptor cones, each sensitive to a different range of wavelengths of visible light, as shown in this figure (the colors are merely to differentiate the three curves from one another; they do not indicate the a..

How many photons per second are striking the photocell : In a certain experiment, when light of wavelength 630 nm is directed onto the photocell, electrons are emitted at the rate of 2.6 X 10-12 C/s (coulombs per second). Assume that each photon that impinges on the photocell emits one electron. How man..

A typical romanesque portal does not contain which element : the rock cave in Jerusalem believed to have been the location of Christ's burial

What color is absorbed most strongly if a plant is orange : The observed color of an object is not the color of light it absorbs but rather the complementary color, as described by a color wheel such as the one shown here. On this wheel, complementary colors are across from each other. Based on this wheel,..

What is the deadweight loss resulting from imposition of tax : What is the amount of tax revenue generated from this tax? What is the deadweight loss resulting from the imposition of the tax

User Account

All Pages