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

Author Question: A slide projector is designed with its lens 6.0 m from the screen. The projected image is 1.5 m ... (Read 63 times)

BrownTown3

  • Hero Member
  • *****
  • Posts: 564
on: Jul 27, 2018
A slide projector is designed with its lens 6.0 m from the screen. The projected image is 1.5 m square of a slide object 2.5 cm square.
 
  (a) What is the object distance from the lens?
  (b) What should be the lens focal length?
  (c) What is the lens POWER?

Question 2

Mary builds a simple magnifying telescope using two lenses of focal length 80. cm and 5.0 cm. The respective diameters are 60. mm and 10. mm.
 
  How many degrees wide does the moon appear through the telescope if it appears only 1/2 degree wide with the naked eye?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

miss_1456@hotmail.com

  • Sr. Member
  • ****
  • Posts: 289
Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 10. cm
(b) f = 9.8 cm
(c) 10.2 Diopters

Answer to Question 2

8 degrees wide (16 times larger)


BrownTown3

  • Hero Member
  • *****
  • Posts: 564
Reply #2 on: Jul 27, 2018
Thanks


miss_1456@hotmail.com

  • Sr. Member
  • ****
  • Posts: 289
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Thyroid scan. The right image is the data from a thyroid scan, printed on a superimposed map of the Thyroid scan. The right image is the data from a thyroid scan, printed on a superimposed map of the
Example of an employee setup screen in a computerized payroll program. Example of an employee setup screen in a computerized payroll program.
Example of equipment used for a urine drug screen that a medical office may require before ... Example of equipment used for a urine drug screen that a medical office may require before ...
Compressing the breast between plates provides a better image of breast tissue. Regular mammograms ... Compressing the breast between plates provides a better image of breast tissue. Regular mammograms ...
Effleurage with palms to reconnect the hip area to the leg. Slide the palms from foot to around the ... Effleurage with palms to reconnect the hip area to the leg. Slide the palms from foot to around the ...
Mastering Biology Question Mastering Biology Question
Video: DNA Replication

For a complete list of videos, visit our video library