The human eye is able to detect as little as 2.35
The human eye is able to detect as little as 2.35 x10 Jof green light of wavelength 510 nm. Calculate the minimum number of photons of green light that can be detected by the human eye. Physical constants can here. Number number of photons- photons
The retina of a human eye can detect light when radiant energy incident on it is at least 3.85 x 10-17J =. For light of 555 nm wavelength, how many photons does this correspond to?
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?
1. Under favorable conditions, the human eye can detect light waves with intensities as low as 2.50 × 10−12 W/m2. At this intensity, what is the average power incident on a pupil of diameter 8.00 mm? 2. A standing wave has wavenumber 203 rad/m. What is the distance between two adjacent nodes?
The human eye can readily detect wavelengths from about 400 nm to 700 nm. Part A If white light illuminates a diffraction grating having 830 lines/mm, over what range of angles does the visible m = 1 spectrum extend? Express your answers in degrees separated by a comma.
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%...
2.11 The human eye. The human eye is sensitive from roughly 10-6 cd/m2 (dark night, rod-dominated vision, essentially monochromatic) to about 106 cd/m2 (bright sunlight). Calculate the dynamic range of the eye.
Explain why a SPECT system may be able to detect a PET isotope but a PET system can’t detect a SPECT isotope. Explain why a SPECT system may be able to detect multiple different SPECT tracers simultaneously but a PET system could never detect multiple different PET tracers simultaneously.
The focal length of the human eye is approximately 1.7 cm. What is the f-number for the human eye in bright light, when the pupil diameter is 3.0mm ? What is the f-number in dim light, when the pupil diameter has expanded to 7.0mm ?
More than half of the healthcare organizations have little or no confidence that their organization could detect a data breach. How can an organization increase that confidence?