Wavelength of light = 550 nm
From the given graph,
No. of type I receptors activated= 0 (almost)
No. of type II receptors activated= 28 (approx)
No. of type III receptors activated= 23 (approx)
Light of wavelength 550 nm is incident on an eye with the sensitivity curve shown. 2 How many typ...
Can You See a Single Photon? The wavelength corresponding to the maximum sensitivity of the human eye is 510 nm, the limit of sensitivity of the dark-adapted eye has been shown to be correspond to a 100 ms flash of light of total energy 240 eV. (Little Shop of Physics- Colorado State University) 1 J = 6.241509 x 1018 eVa) What is the energy of a single photon at this wavelength?b) How many photons does the flash contain?c) If 60%...
Absorption [%] 300 400 500 600 700 nm What wavelength of light would be the best to use when constructing a standard curve for this pigment? 400 nm 450 nm 500 nm 550 nm 600 nm
Chapter 33, Problem 003 From the figure, approximate the (a) smaller and (b) larger wavelength at which the eye of a standard observer has half the eye's maximum sensitivity. What are the (c) wavelength, (d) frequency, and (e) period of the light at which the eye is the most sensitive? 100 80) F 60 40 400 450 500 550 600 650 700 Wavelength (nm) (a) Number (b) Number (c) Number (d) Number (e) Number Units Units Units Units Units
1.2 1.0 0.8 0.6 0.4+ 0.2 0+ 300 350 400 450 500 550 600 650 700 Wavelength (nm) The absorption spectrum of a certain red dye is shown above. If a student analyzing the same concentration of this dye neglected to wipe fingerprints off the cuvette before placing it in the spectrophotometer, how would the absorption curve be affected? Absorbance
A light beam of wavelength 550 nm is incident on a sheet of glass of index of refraction 1.3. Surrounding the glass is air (index of refraction about 1.0). If no reflected light is observed, what can one conclude is the thinnest the sheet of glass can be? Please explain the answer.
Light of wavelength 650 nm is normally incident on the rear of a grating. The first bright fringe (other than the central one) is at an angle of 5° with respect to the normal. 1) Find the number of slits per centimeter in the grating. slits/cm Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 2) Two rays of light of wavelength 650 nm and 420...
(i) State which wavelength (primary peak) corresponds to fluorescence and also to phosphorescence? By calculating the energy of each peak, draw the energy level diagram corresponding to the graph below. Highlight transition of light absorbance, fluorescence and phosphorescence emission Briefly state with appropriate diagrams, a) why the phosphorescence emission has a longer lifetime and b) appears at a lower energy with a lower intensity. (ii) (iii) 900 800 700 600 500 400 300 200 100 350 400 450 500 550...
what is the maximum wavelength of incident light that can produce photoelectrons from silver? The work function for silver is Φ=2.93 eV, 4.23x102 nm You are correct. Previous Tries In this experiment, what is the minimal potential needed to fully stop the electrons if the wavelength of the incident light is 375 nm? Submit Answer Incorrect. Tries 5/99 Previous Tries
2. The retina of a human eye can detect light when radiant energy incident on it is at least 4.0X10-17 J. For light of 600-nm wavelength, how many photons does this correspond to?
• Timer Notes Evaluate Feedback 9 Print What is the maximum wavelength of incident light that can produce photoelectrons from silver? The work function for silver is O=2.93 eV. Submit Answer Tries 0/20 In this experiment, what is the minimal potential needed to fully stop the electrons if the wavelength of the incident light is 391 nm? ( (Submit Answer Tries 0/20 e Post Discussion 4 Send Feedback