Question: 22.5.7) The smallest light intensity that the eye can perceive is about 10 -10 W / m2. How many photons enter the eye pupil per

22.5.7) The smallest light intensity that the eye can perceive is about 10^-10 W / m2. 
How many photons enter the eye pupil per second if the wavelength is λ = 560 nm? 
The surface of the pupil is approximately 0.5 10^-4 m2.

Step by Step Solution

★★★★★

3.48 Rating (155 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Questions!

Photons with a wavelength of 400 nm are incident on an unknown metal, and electrons are ejected from the metal. However, when photons with a wavelength of 700 nm are incident on the metal, no...

Photons of wavelength 350 nm are incident on a metal plate in a photocell and electrons are ejected. A stopping potential of 1.10 V is able to just prevent any of the ejected electrons from reaching...

Photons of wavelength 0.154 nm are emitted from the surface of a certain metal when it is bombarded with highenergy radiation. If this photon wavelength corresponds to the K line, what is the element?

An owl has good night vision because its eyes can detect a light intensity as small as 5.0 10 -13 W/m 2 . What is the minimum number of photons per second that an owl eye can detect if its pupil has...

PHYSICS Answer ALL questions. Question 1 a) Assume that the layer that a layer of oil about 0.5 cm thick is oating on a body of water. A light ray originating from the body of water strikes on the...

What attributes should the company focus on while designing the communication plan? For the exclusive use of J. Barry, 2020. A00183 March 31, 2014 Revised 18 June 2019 Cerenity Sanitiser: Marketing...

Nestle Global: looks for ways to boost stale growth as consumers snub unhealthy food Large food companies have long been among the world's most solid, with reassuringly consistent returns even in...

cc170785fa926b2240534b10e7743155388d392a ID hours 1 37.09953814 2 34.58422938 3 37.85777106 4 36.03408777 5 38.71008438 6 38.18084857 7 37.7883698 8 38.41027533 9 39.53619743 10 37.46797595 11...

required: Once the board and management are set, a location is selected and the overall vision for the bank is created. The organizing group then sends its plan, along with information on the board...

MPO Fentres Case synopsis Research problem How to succeed in the PVC window market? Case summary This case study is based on real events which occurred in 2010. It describes the launch by MPO Fentres...

A 25-kg iron block initially at 350C is quenched in an insulated tank that contains 100 kg of water at 18C. Assuming the water that vaporizes during the process condenses back in the tank, determine...

You have just invested in a portfolio of three stocks. The amount of money that you invested in each stock and its beta are summarized below. Stock A B C Investment Beta $208,000 312,000 520,000 Beta...

Evaluate the definite integral 4 7 ( 3 x 2 - 4 x 2 ) d x =

Our group first assessed the value of Community Hospital (CH) using a discounted cash flow (DCF) method. CH is clearly in financial troubles, due in large part due to the large amount of debt they...

1. What incentive did Toyota have to enter into a joint venture and share its groundbreaking production techniques with rival GM? 2. From GMs perspective why did a joint venture with Toyota make...

SW Company provides the Equity & Liability information below for analysis SW Company had net income of $365,700 in 2020 and $339,200 in 2019. Equity and Liabilities 2020 2019 Share capital common...

Bill Inc began business on Jan 1, 2017. Its pre-tax financial income for the first two years was as follows: 2017: $ 620000 2018: $ 715000. The following items caused the only differences between...

Suppose you know that the own price elasticity of demand for good X is 2. Suppose that the price in the market is initially $10 and the quantity demanded is 100 units. If price in this market...

1. Sebuah perusahaan startup teknologi yang baru berkembang pesat telah memiliki 500 karyawan. Awalnya, perusahaan ini sangat fleksibel dengan sedikit aturan tertulis (formalisasi rendah), yang...

' Question 4 (1 points) Typically, the lowest light intensity that can be reliably seen by humans after adapting to the dark is 4.00 X 1011 W/m2 at a wavelength of 500nm. If light with this intensity...

Estimating the following two numbers should be interesting. The first number will tell you why radio engineers do not need to worry much about photons! The second number tells you why our eye can...

Answer the Activity 2 and the assignment part. 2. Click the lamp to turn on the light. When reading currents, click on the red button each time the brightness or color is changed. Read the texts so...

Explain how the principles of quantum mechanics are able address the issues. The development of quantum mechanical theory stems from several issues that could not be addressed by the principles of...

l. The visible intensity threshold ofa night-vision device is 4.0X10'\" mez at the wavelength of 500 run. If the light with this intensity and wavelength enters an eye and the pupil is open to its...

pls help me with this quantum physics qstn. thank you! 1. The visible intensity threshold of a night-vision device is 4.0x10-11 W/mat the wavelength of 500 nm. If the light with this intensity and...