1

A laser is used in eye surgery to weld a detached retina back into place. The wavelength of the laser beam is $514 \mathrm{nm}$ and the power is 1.5 W. During surge...

Question

A laser is used in eye surgery to weld a detached retina back into place. The wavelength of the laser beam is $514 \mathrm{nm}$ and the power is 1.5 W. During surgery, the laser beam is turned on for 0.050 s. During this time, how many photons are emitted by the laser?

A laser is used in eye surgery to weld a detached retina back into place. The wavelength of the laser beam is $514 \mathrm{nm}$ and the power is 1.5 W. During surgery, the laser beam is turned on for 0.050 s. During this time, how many photons are emitted by the laser?



Answers

A laser used to weld detached retinas emits light with a wavelength of 652 nm in pulses that are 20.0 ms in duration. The average power during each pulse is 0.600 W. (a) How much energy is in each pulse in joules? In electron volts? (b) What is the energy of one photon in joules? In electron volts? (c) How many photons are in each pulse?


Similar Solved Questions

5 answers
Which of the following represents vinylic carbocation?CH; CH = CH;CH; CH = € - CH;CH; - CH-C =C-H [ITonlyland IlIand IIIIl only
Which of the following represents vinylic carbocation? CH; CH = CH; CH; CH = € - CH; CH; - CH-C =C-H [I Tonly land Il Iand III Il only...
5 answers
50 points possible 9/50 answeredQuestion 13Find the exponential equation whose graph passes through the points ( 3,and (2,36)Question Help:MessageInstructorNext Question
50 points possible 9/50 answered Question 13 Find the exponential equation whose graph passes through the points ( 3, and (2,36) Question Help: MessageInstructor Next Question...
5 answers
You are delivering box of masks to an assisted living home by carrying the box at constant speed across parking lot with no slope. Which best describes this situation?You are doing positive work on the boxThe box is doing negative work on your hands_You are doing zero work on the box:You are doing negative work on the box
You are delivering box of masks to an assisted living home by carrying the box at constant speed across parking lot with no slope. Which best describes this situation? You are doing positive work on the box The box is doing negative work on your hands_ You are doing zero work on the box: You are doi...
5 answers
Let be a regular, but not necessarily unit-speed, curve on SUr - face. Prove that (with the usual notation) the normal and geodesic curvatures of ~ are3 . (N x T) and 6g (7,7)3/2Kn =
Let be a regular, but not necessarily unit-speed, curve on SUr - face. Prove that (with the usual notation) the normal and geodesic curvatures of ~ are 3 . (N x T) and 6g (7,7)3/2 Kn =...
5 answers
(JJ1 Hov many constitubonallyeinenetein 4 toruLiCh0?OncrWunicnthe follo ~ing E nood methad (Ccon QIJyfen-butdd methyl ether(CIACIAara~aalhCHARI(CICECH-OI(J51 What tne milor Droducl 04 the tolorng meicbonnmEtten M Le(36) What Is the product of tha reactions belo:?CIAAICOILHAOAe)C,Cc CH;C,CCHCiOclC CCcH mI TdCCn CaouCCCuCHOl c1l,Kmlchfollovnngacetal?HiC C_OCH;Hic= ~OHOCH; HJC C_OCH;Hic OCH,
(JJ1 Hov many constitubonally einen etein 4 toruLi Ch0? Oncr Wunicn the follo ~ing E nood methad (Ccon QIJy fen-butdd methyl ether (CIA CIAara ~aalh CHARI (CICE CH-OI (J51 What tne milor Droducl 04 the tolorng meicbonn mEtten M Le (36) What Is the product of tha reactions belo:? CIAAI COILHAOAe) C,C...
5 answers
II) Ifthe probability 0f g newborn child being female is 0.6, find the probability that in 100 births, #least 55 will be female: Use the normal distribution to approximate distribution. the binomial12) Same data %$ in problem Il) ie P (female) most 48 will be =.6, female: find the probability that in 100 births,=
II) Ifthe probability 0f g newborn child being female is 0.6, find the probability that in 100 births, #least 55 will be female: Use the normal distribution to approximate distribution. the binomial 12) Same data %$ in problem Il) ie P (female) most 48 will be =.6, female: find the probability that ...
5 answers
Which of the following events does not occur in noncompetitive inhibition involving enzymes?Binding to allosteric inhibitor to the active site on enzyme Binding of substrate to active site on enzyme in the absence of allosteric inhibitor After dissociation of allosteric inhibitor from enzyme; substrate can bind to enzyme at active site Change in the shape of enzyme is triggered by the binding of allosteric inhibitor at allosteric site
Which of the following events does not occur in noncompetitive inhibition involving enzymes? Binding to allosteric inhibitor to the active site on enzyme Binding of substrate to active site on enzyme in the absence of allosteric inhibitor After dissociation of allosteric inhibitor from enzyme; subst...
5 answers
Evaluate the integral by interpreting it in terms Of areas- [(+ V36Need Help? Lidh ?[-/1 Points]DETAILSSCALCET7 5.2.039_Evaluate the integral by interpreting It In terms of areas L Ixl dxNeed Help?Whichk[-/2 Points]DETAILSSCALCET7 5.2.047.Mi,Wrtte as single integrab in the formKx) dx:[ fx) axf(x) d{6) dxKdx
Evaluate the integral by interpreting it in terms Of areas- [(+ V36 Need Help? Lidh ? [-/1 Points] DETAILS SCALCET7 5.2.039_ Evaluate the integral by interpreting It In terms of areas L Ixl dx Need Help? Whichk [-/2 Points] DETAILS SCALCET7 5.2.047.Mi, Wrtte as single integrab in the form Kx) dx: [ ...
5 answers
The data set repesentsthe Income (inthousands] ofzu employees at 4 smallbusiness, 28 26 34 33 20 39 28 33 26 39 28 33 33 32Find the MeaI the Wueun Jd the mode of Mcome fot employees: What Is the advantage And the limitation o using the followlng measure [0 represent datasel? Mean Medlan(6 marks)(4 marks)
The data set repesentsthe Income (inthousands] ofzu employees at 4 smallbusiness, 28 26 34 33 20 39 28 33 26 39 28 33 33 32 Find the MeaI the Wueun Jd the mode of Mcome fot employees: What Is the advantage And the limitation o using the followlng measure [0 represent datasel? Mean Medlan (6 marks) (...
5 answers
One of the following functions is NOT one-to-one function 1Laf{x) = sin(x) I € [0, 3]Nonef6) = Il, xe [-3,-1]f(x) = x2 + 1, x e [-8,8]f(x) cos{x), x € [0,J]
One of the following functions is NOT one-to-one function 1La f{x) = sin(x) I € [0, 3] None f6) = Il, xe [-3,-1] f(x) = x2 + 1, x e [-8,8] f(x) cos{x), x € [0,J]...
5 answers
(iso: Inote: 3 Ahydrogen Since n atom should know that final uoissiua exact number V with sig: figs. M in your released answer) because 2 the 486.31 wavelength what is the the visiblel initial quantum number?
(iso: Inote: 3 Ahydrogen Since n atom should know that final uoissiua exact number V with sig: figs. M in your released answer) because 2 the 486.31 wavelength what is the the visiblel initial quantum number?...
1 answers
Find the value of each expression. $$ 11 \cdot 4+10 \cdot 3 $$
Find the value of each expression. $$ 11 \cdot 4+10 \cdot 3 $$...
5 answers
Part A: For each reaction state the molecular equation, complete ionic equation and the net ionic equation (if possible); assuming double displacement reaction occurs between the two species: Show ALL of your steps t0 determing the answer: Answers with only net ionic equations will NOT receive full marks:Solutions of lead (TT) nitrate and lithium bromide are mixed: (5 marks)
Part A: For each reaction state the molecular equation, complete ionic equation and the net ionic equation (if possible); assuming double displacement reaction occurs between the two species: Show ALL of your steps t0 determing the answer: Answers with only net ionic equations will NOT receive ful...

-- 0.018303--