This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The near point of a farsighted person is 65 cm. What power contact lens must he use to correct this ... (Read 88 times)

kellyjaisingh

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
The near point of a farsighted person is 65 cm. What power contact lens must he use to correct this problem and be able to read a book at a normal near point of 25 cm?
 
  A) -4.2 diopters B) +4.2 diopters C) -2.4 diopters D) -2.5 diopters E) +2.5 diopters

Question 2

An 18-mm wide diffraction grating has rulings of 880 lines per mm. Monochromatic light of 590 nm wavelength is incident normally on the grating.
 
  What is the largest angle, measured from the central bright spot, at which an intensity maximum is formed?
  A) 23 B) 25 C) 31 D) 29 E) 27
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sultansheikh

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


kellyjaisingh

  • Hero Member
  • *****
  • Posts: 540
Reply #2 on: Jul 29, 2018
Thanks


sultansheikh

  • Sr. Member
  • ****
  • Posts: 335
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

A comparison between chromosomes found in a normal human cell and a cancer cell from the same person A comparison between chromosomes found in a normal human cell and a cancer cell from the same person
Myopia (nearsightedness). In the uncorrected top figure, the image comes into focus in front of the Myopia (nearsightedness). In the uncorrected top figure, the image comes into focus in front of the
Light-Gathering Power Light-Gathering Power
Point Sources of Pollution Point Sources of Pollution
Edward Bellamy, author of the utopian novel Looking Backward (1888) Bellamy’s socialism worried many Edward Bellamy, author of the utopian novel Looking Backward (1888) Bellamy’s socialism worried many
How to find the point of intersection of two straight lines by graphing How to find the point of intersection of two straight lines by graphing
Video: Chemical Messengers Animation

For a complete list of videos, visit our video library