Homework Answers
Option 3 is true because ide penetration depth is 2 mm to 7 mm but generally all lasers work for penetration depth of 4 mm to 7 mm.
So option 3) is correct.
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Question 32 (1 point) Which of the following statement is true? A penetration depth of 1mm...
Question 31 (2 points) Which of the following statement is false? Er:Yag and CO2 lasers can...
Question 31 (2 points) Which of the following statement is false? Er:Yag and CO2 lasers can vaporize tissue because they strongly absorbed in tissue He-Ne is often used in biostimulation to raise tissue temperature around 40°C Argon and Nd:Yag are the lasers of choice to stop bleeding Nd:Yag laser can be efficient in the treatment of capsulotomy Er:Yag and CO2 laser can be used to correct the curvature of the cornea Question 32 (1 point) Which of the following statement...
Question 17 (1 point) Which of the following statements makes sense during eye surgery on the...
Question 17 (1 point) Which of the following statements makes sense during eye surgery on the retina? CO2 lasers should be used as they emit at a long wavelength and they are focused on a larger spot size Arf lasers are good laser to use because they emit at short wavelength Er: Yag laser emitting at 3 um should be used A laser with a good penetration in aqueous media is desirable Any laser focused on the cornea can be...
Question 19 (1 point) Which of the following statement is false? The process of fluorescence is...
Question 19 (1 point) Which of the following statement is false? The process of fluorescence is used when exciting exogenous fluorophores Er:Yag laser radiation is strongly absorbed by tissue The penetration of Er:Yag laser is very small in tissue FREDDY Nd:Yag can be used in lithotripsy Ho:Yag cannot be used in lithotripsy.
Question 33 (1 point) Which two amongst the five following statements are true? 1) Nd:Yag lasers...
Question 33 (1 point) Which two amongst the five following statements are true? 1) Nd:Yag lasers penetrate deeply into skin because they are not absorbed much by tissue 2) Nd: Yag is the ideal laser to use to correct the cornea 3) Er:Yag lasers are not absorbed at all by tissue 4) Argon lasers are very efficient to smash stones in lithotripsy surgery 5) The Ruby laser was the first laser that was invented 1) and 5) 2) and 3)...
These compoun is controlled by the energy gap separating the bands Question 9 (1 point) Which...
These compoun is controlled by the energy gap separating the bands Question 9 (1 point) Which of the following statements is false? Ho:Yag laser is used in lithotripsy Kr laser can be used in photo-dynamic therapy to excite exogenous fluorophores Alexandrite lasers can be used for tattoo removals Radiation emitted by the CO2 laser propagates well in all optical fibers Radiation emitted by Er: Yag lasers are strongly absorbed by water Question 10 (1 point) Which of the following statements...
Question 6 (1 point) Five groups of three different lasers are listed below. Which group is...
Question 6 (1 point) Five groups of three different lasers are listed below. Which group is listing three lasers emitting in the visible spectrum? Nd:Yag, ArF, excimer laser Ruby, Nd:Yag, He:Ne Argon, Ruby, KrF Alexandrite, Er:Yag, CO2 Ruby, Argon, He:Ne Question 7 (2 points) The incident radiation intensity entering the material that is used to make a pair of safety glasses is 107 W/cm2 and the intensity of the radiation measured after transmission is 1W/cm2. What is the optical density...
Question 25 (1 point) Five groups of three lasers are listed below. Which group is listing...
Question 25 (1 point) Five groups of three lasers are listed below. Which group is listing three lasers that can be used to treat port-wine stains? O Argon (1 = 515 nm), Argon ( = 488nm), Nd:Yag Argon ( 1 = 515 nm), Argon ( 1 = 488nm), He:Ne ( 1 =633nm, red) Excimer laser, CO2, Nd:Yag O Argon ( 1 = 515 nm), Argon ( 1 = 488nm), He:Ne cd=594nm, yellow) ArF, KrF, XeCI.
Question 8 (1 point) Which statement is true regarding the figure below? х Y Case X...
Question 8 (1 point) Which statement is true regarding the figure below? х Y Case X shows edge heave, which can happen in wet season, and case Y shows centre heave, which can happen in dry season Case X shows centre heave, which can happen in wet season, and case Y shows edge heave, which can happen in dry season Case X shows a centre heave, which can happen in dry season, and case Y shows edge heave, which can...
Question 4 (1 point) Saved Which of the following is true of the telephone as a...
Question 4 (1 point) Saved Which of the following is true of the telephone as a communication medium? o It should not be used for discussing bad news. It makes it difficult to measure message impact. It should not be used for sending confidential ukri Gure: Attempt 1 Question 4 (1 point) Saved Which of the following is true of the telephone as a communication medium? O It should not be used for discussing bad news. It makes it difficult...
11. Which of the following is not a true statement about ecotourism? 12. Which of the...
11.
Which of the following is not a true statement about ecotourism?
12. Which of the following best illustrates a positive
externality?
13. Which of the following is not an example of a public
good?
Question 11 Which of the following is not a true statement about ecotourism? Select the correct answer below: O Because of ecotourism, residents of low-income countries may come to see that preserving wildlife habitats is more lucrative than, say, cutting down forests. O Some of...
Question 31 (2 points) Which of the following statement is false? Er:Yag and CO2 lasers can vaporize tissue because they strongly absorbed in tissue He-Ne is often used in biostimulation to raise tissue temperature around 40°C Argon and Nd:Yag are the lasers of choice to stop bleeding Nd:Yag laser can be efficient in the treatment of capsulotomy Er:Yag and CO2 laser can be used to correct the curvature of the cornea Question 32 (1 point) Which of the following statement...
Question 17 (1 point) Which of the following statements makes sense during eye surgery on the retina? CO2 lasers should be used as they emit at a long wavelength and they are focused on a larger spot size Arf lasers are good laser to use because they emit at short wavelength Er: Yag laser emitting at 3 um should be used A laser with a good penetration in aqueous media is desirable Any laser focused on the cornea can be...
Question 19 (1 point) Which of the following statement is false? The process of fluorescence is used when exciting exogenous fluorophores Er:Yag laser radiation is strongly absorbed by tissue The penetration of Er:Yag laser is very small in tissue FREDDY Nd:Yag can be used in lithotripsy Ho:Yag cannot be used in lithotripsy.
Question 33 (1 point) Which two amongst the five following statements are true? 1) Nd:Yag lasers penetrate deeply into skin because they are not absorbed much by tissue 2) Nd: Yag is the ideal laser to use to correct the cornea 3) Er:Yag lasers are not absorbed at all by tissue 4) Argon lasers are very efficient to smash stones in lithotripsy surgery 5) The Ruby laser was the first laser that was invented 1) and 5) 2) and 3)...
These compoun is controlled by the energy gap separating the bands Question 9 (1 point) Which of the following statements is false? Ho:Yag laser is used in lithotripsy Kr laser can be used in photo-dynamic therapy to excite exogenous fluorophores Alexandrite lasers can be used for tattoo removals Radiation emitted by the CO2 laser propagates well in all optical fibers Radiation emitted by Er: Yag lasers are strongly absorbed by water Question 10 (1 point) Which of the following statements...
Question 6 (1 point) Five groups of three different lasers are listed below. Which group is listing three lasers emitting in the visible spectrum? Nd:Yag, ArF, excimer laser Ruby, Nd:Yag, He:Ne Argon, Ruby, KrF Alexandrite, Er:Yag, CO2 Ruby, Argon, He:Ne Question 7 (2 points) The incident radiation intensity entering the material that is used to make a pair of safety glasses is 107 W/cm2 and the intensity of the radiation measured after transmission is 1W/cm2. What is the optical density...
Question 25 (1 point) Five groups of three lasers are listed below. Which group is listing three lasers that can be used to treat port-wine stains? O Argon (1 = 515 nm), Argon ( = 488nm), Nd:Yag Argon ( 1 = 515 nm), Argon ( 1 = 488nm), He:Ne ( 1 =633nm, red) Excimer laser, CO2, Nd:Yag O Argon ( 1 = 515 nm), Argon ( 1 = 488nm), He:Ne cd=594nm, yellow) ArF, KrF, XeCI.
Question 8 (1 point) Which statement is true regarding the figure below? х Y Case X shows edge heave, which can happen in wet season, and case Y shows centre heave, which can happen in dry season Case X shows centre heave, which can happen in wet season, and case Y shows edge heave, which can happen in dry season Case X shows a centre heave, which can happen in dry season, and case Y shows edge heave, which can...
Question 4 (1 point) Saved Which of the following is true of the telephone as a communication medium? o It should not be used for discussing bad news. It makes it difficult to measure message impact. It should not be used for sending confidential ukri Gure: Attempt 1 Question 4 (1 point) Saved Which of the following is true of the telephone as a communication medium? O It should not be used for discussing bad news. It makes it difficult...
11.
Which of the following is not a true statement about ecotourism?
12. Which of the following best illustrates a positive
externality?
13. Which of the following is not an example of a public
good?
Question 11 Which of the following is not a true statement about ecotourism? Select the correct answer below: O Because of ecotourism, residents of low-income countries may come to see that preserving wildlife habitats is more lucrative than, say, cutting down forests. O Some of...
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