The human eye is a complex sensing device for visible light. The optic nerve needs a minimum of 2.0 x 101" J of energy to trigger a series of impulses that eventually reach the brain. How many photons of blue light (475 nm) are needed?

Q: In scenario B, visible light has a frequency of 5.455 x 1014 s-l. Determine its wavelength, energy…

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Q: 1. What is the energy of a photon of 8.70 x 106 micrometers?

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Q: The retina of a human eye can detect light when radiant energy incident on it is at least 4.25  ×…

A: Given data: Radiant energy incident on human eye = 4.25 ×10−17 J Wavelength correspondence is given…

Q: A hydrogen atom absorbs energy and an electron is excited to the n = 2 shell. When the electron…

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Q: The work function (ϕ) for the a metal is 7.00 x 10 -19 J. What is the longest wavelength of…

A: Given, work function (ϕ) for metal is 7.00 x 10 -19 J.

Q: How many photons are contained in a flash of green light (525 nm) that contains 275 kJ of energy

A: The energy associated with photons of light is given by the formula  E = n×hcλHere , E = energy n =…

Q: A 31 W (1 W = 1 J/s) lamp generates violet light at a wavelength of 420 nm. How many photons of this…

A: First calculate energy of one photon.

Q: A 17 Watt laser emits light with a wavelength of 525 nm.  How many photons are emitted in 6.0…

A: The energy of a photon is calculated using the below equation.