« previous next »

Author Question: A camera has a lens that has an adjustable film distance used for focusing purposes. When the object ... (Read 87 times)

Mr.Thesaxman

  • Hero Member
  • *****
  • Posts: 514
on: Jul 28, 2018
A camera has a lens that has an adjustable film distance used for focusing purposes. When the object being photographed is at a very large distance, the distance from the lens to the film is 50.0 mm. What would be the lens-to-film distance for an in-focus object 2.00 m from the camera?
 a. 66.7 mm
  c. 51.3 mm
  b. 40.0 mm
  d. 48.8 mm

Question 2

The pupil of the eye increases in size under which condition?
 a. object viewed is well illuminated
  b. eye is focused on a nearby object
  c. object viewed is dimly illuminated
  d. eye is focused on a distant object


cdmart10

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Mars's average distance from the Sun is roughly 230 million km (1.5 AU) and its orbital period Mars's average distance from the Sun is roughly 230 million km (1.5 AU) and its orbital period
Correct position when lifting a heavy object off the floor. Correct position when lifting a heavy object off the floor.
Multigroove adjustable pliers are known by many names, including the trade name Channel Locks®. Multigroove adjustable pliers are known by many names, including the trade name Channel Locks®.
Nontraditional Gender Representation in Film Nontraditional Gender Representation in Film
Rapid, long-distance signaling in plants Rapid, long-distance signaling in plants
Examples of drawings in each category of two object forms Examples of drawings in each category of two object forms
Video: Acid-base imbalances - compensation of respiratory acidosis and alkalosis

For a complete list of videos, visit our video library