« previous next »

Author Question: A slide projector has a lens of focal length 150. mm. An image 100. cm 100. cm is formed of a slide ... (Read 102 times)

danielfitts88

  • Hero Member
  • *****
  • Posts: 535
on: Jul 27, 2018
A slide projector has a lens of focal length 150. mm. An image 100. cm  100. cm is formed of a slide whose dimensions are 50.0 mm  50.0 mm. How far from the lens must the screen be placed?
 
  What will be an ideal response?

Question 2

A magnifying glass of focal length 150. mm is used to examine an old manuscript.
 
  (a) What is the maximum magnification given by the lens?
  (b) What is the magnification for relaxed eye-viewing (image at infinity)?


jjorrostieta

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Jul 27, 2018
Answer to Question 1

3.15 m

Answer to Question 2

(a) 2.67
(b) 1.67


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

danielfitts88

  • Hero Member
  • *****
  • Posts: 535
Reply #2 on: Jul 27, 2018
Thanks


jjorrostieta

  • Sr. Member
  • ****
  • Posts: 298
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

A lilac, orange and white Satin Peruvian guinea pig (show-length coat) A lilac, orange and white Satin Peruvian guinea pig (show-length coat)
Much of the dark space between stars, as seen in the sky of the image above, is due to the human eye Much of the dark space between stars, as seen in the sky of the image above, is due to the human eye
True-color image of layers of haze in Titan's atmosphere. True-color image of layers of haze in Titan's atmosphere.
Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
HELP WITH IMAGE PLEASE HELP WITH IMAGE PLEASE
Electrophoretic separation of a mixture of DNA fragments that vary in length Electrophoretic separation of a mixture of DNA fragments that vary in length
Video: Phlebotomy

For a complete list of videos, visit our video library