Part AExposure to a sufficient quantity of ultraviolet willredden the skin, producing erythema - a sunburn. Theamount of exposure necessary to produce thisreddening depends on the wavelength. For a 1.0 cm²patch of skin, 3.7 m.J of ultraviolet light at awavelength of 254 nm will produce reddening; at 300nm wavelength, 13 mJ are required.What is the photon energy corresponding to each of these wavelengths?Express your answers using three significant figures separated by a comma.?Ο ΑΣΦE254, E300 =SubmitRequest AnswerPart BJHow many total photons does each of these exposures correspond to?Express your answers using two significant figures separated by a comma.VAΣΜΕ ΑΣΦN254, N300SubmitRequest Answer?photons

Step 1:The first energy that produce reddening is 3.7mJ is 3.7×10−3JThe first wavelengths is 254nm…

Answered: Part A Exposure to a sufficient…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Part A The intensity of sunlight hitting the surface of the earth on a cloudy day is about 0.50 kW/m² Assuming your pupil can close down to a diameter of 2.0 mm and that the average wavelength of visible light is 550 nm, how many photons per second of visible light enter your eye if you look up at the sky on a cloudy day? Express your answer using two significant figures. N = ΜΕ ΑΣΦ Submit Request Answer ?
Learning Goal: To understand the Bohr model of the hydrogen atom. In 1913 Niels Bohr formulated a method of calculating the different energy levels of the hydrogen atom. He did this by combining both classical and quantum ideas. In this problem, we go through the steps needed to understand the Bohr model of the atom. Part A Consider an electron with charge -e and mass m orbiting in a circle around a hydrogen nucleus (a single proton) with charge +e. In the classical model, the electron orbits around the nucleus, being held in orbit by the electromagnetic interaction between itself and the protons in the nucleus, much like planets orbit around the sun, being held in orbit by their gravitational interaction. When the electron is in a circular orbit, it must meet the condition for circular motion: The magnitude of the net force toward the center, F, is equal to mv²/r. Given these two pieces of information, deduce the velocity of the electron as it orbits around the nucleus. Express your…
Our sun's 5800 K surface temperature gives a peak wavelength in the middle of the visible spectrum. Part A What is the minimum surface temperature for a star whose emission peaks at some wavelength less than 400 nm− that is, in the ultraviolet?
The uncertainty in position of a proton confined to the nucleus of an atom is roughly the diameter of the nucleus. Part A If this diameter is 5.6×10-15 m, what is the uncertainty in the proton's momentum? Express your answer using two significant figures. 15. ΑΣΦ Ap> Submit Provide Feedback Request Answer B m ? kg-m/s
Answer all parts please
Part A Estimate the number of photons emitted by the Sun in a year. (Take the average wavelength to be 550 nm and the intensity of sunlight reaching the Earth (outer atmosphere) as 1350 W/m².) VE ΑΣΦ 3.74 10 ● Submit ? Previous Answers Request Answer photons/yr
The K series of the discrete spectrum of tungsten contains wavelengths of 0.0185 nm, 0.0209 nm, and 0.0215 nm. The K-shell ionization energy is 69.5 keV. Determine the ionization energies of the L, M, and N shells. Step 1 Characteristic x-rays of the K series are produced when an electron in an upper energy level of a many- electron atom drops down to fill a vacancy in the K (n = 1) shell. Assuming that the given wavelengths are the three longest wavelengths in the K series of tungsten, the transitions that produce them are from the N (n 4) shell to the K shell, from the M (n = 3) shell to the K shell, and from the L (n = 2) shell to the K shell, respectively. These transitions are shown in the energy level diagram, where 1, = 0.0185 nm, = 0.0209 nm, and 13 12 EK = 0.0215 nm. If the ionization energy of the K shell is 69.5 keV, then = -69.5 keV. En N shell EM M shell EL L shell Ex- K shell The photon produced in a transition from an initial state to a final state has energy hc Ephoton…
can you solve C please
The dark-adapted eye can supposedly detect one photon of light of wavelength 500 nm. Suppose that 100 such photons enter the eye each second. Part A Estimate the intensity of the light. Assume that the diameter of the eye's pupil is 0.50 cm. Express your answer in watts per square meter. Templates Symbols undo redo Teset keyboard shortcuts help I= W/m² ܬܘܝܐ
Module 3 Item 1 Answer ASAP

Recommended textbooks for you

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

Physics for Scientists and Engineers

Physics

ISBN:

9781337553278

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Lecture- Tutorials for Introductory Astronomy

Physics

ISBN:

9780321820464

Author:

Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden

Publisher:

Addison-Wesley

College Physics: A Strategic Approach (4th Editio…

Physics

ISBN:

9780134609034

Author:

Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher:

PEARSON

SEE MORE TEXTBOOKS