Answer The image is formed at infinity if a light source placed at the focal point of a convex lens. Explanation Image formation by convex lens: When the object is placed closer than one focal length, the image formed is virtual and greater in size than object. When the object is placed between one and two focal length, real, inverted and greater image is formed. When the object is placed farther than two focal length, real, inverted and smaller than real image is formed. Image formation by concave lens: When the object is placed closer than one focal length, the image formed is virtual and greater in size than object. When the object is placed between one and two focal length, real, inverted and greater image is formed. When the object is placed farther than two focal length, real, inverted and greater than real image is formed. If light source placed at the focal point of a convex lens, image is formed at the infinity. Conclusion: Hence, the image formed at infinity.

Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)

1st Edition

ISBN: 9780078945830

Author: Charles William McLaughlin, Marilyn Thompson, Dinah Zike

Publisher: Glencoe Mcgraw-Hill

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Question

Chapter 13.2, Problem 11R

To determine

Explain how vision problems reduced with lenses.

Expert Solution & Answer

Answer to Problem 11R

The image is formed at infinity if a light source placed at the focal point of a convex lens.

Explanation of Solution

Image formation by convex lens:

When the object is placed closer than one focal length, the image formed is virtual and greater in size than object.
When the object is placed between one and two focal length, real, inverted and greater image is formed.
When the object is placed farther than two focal length, real, inverted and smaller than real image is formed.

Image formation by concave lens:

When the object is placed closer than one focal length, the image formed is virtual and greater in size than object.
When the object is placed between one and two focal length, real, inverted and greater image is formed.
When the object is placed farther than two focal length, real, inverted and greater than real image is formed.

If light source placed at the focal point of a convex lens, image is formed at the infinity.

Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 13.2, Problem 11R

Conclusion:

Hence, the image formed at infinity.

Chapter 13.2, Problem 10R

Chapter 13.2, Problem 12R

Chapter 13 Solutions

Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)

Ch. 13.1 - Prob. 1R Ch. 13.1 - Prob. 2R Ch. 13.1 - Prob. 3R Ch. 13.1 - Prob. 4R Ch. 13.1 - Prob. 5R Ch. 13.1 - Prob. 6R Ch. 13.2 - Prob. 7R Ch. 13.2 - Prob. 8R Ch. 13.2 - Prob. 9R Ch. 13.2 - Prob. 10R

Ch. 13.2 - Prob. 11R Ch. 13.2 - Prob. 12R Ch. 13.3 - Prob. 13R Ch. 13.3 - Prob. 14R Ch. 13.3 - Prob. 15R Ch. 13.3 - Prob. 16R Ch. 13.3 - Prob. 17R Ch. 13 - Prob. 18R Ch. 13 - Prob. 19R Ch. 13 - Prob. 20R Ch. 13 - Prob. 21R Ch. 13 - Prob. 22R Ch. 13 - Prob. 23R Ch. 13 - Prob. 24R Ch. 13 - Prob. 25R Ch. 13 - Prob. 26R Ch. 13 - Prob. 27R Ch. 13 - Prob. 28R Ch. 13 - Prob. 29R Ch. 13 - Prob. 30R Ch. 13 - Prob. 31R Ch. 13 - Prob. 32R Ch. 13 - Prob. 33R Ch. 13 - Prob. 34R Ch. 13 - Prob. 35R Ch. 13 - Prob. 36R Ch. 13 - Prob. 37R Ch. 13 - Prob. 38R Ch. 13 - Prob. 39R Ch. 13 - Prob. 1STP Ch. 13 - Prob. 2STP Ch. 13 - Prob. 3STP Ch. 13 - Prob. 4STP Ch. 13 - Prob. 5STP Ch. 13 - Prob. 6STP Ch. 13 - Prob. 7STP Ch. 13 - Prob. 8STP Ch. 13 - Prob. 9STP Ch. 13 - Prob. 10STP Ch. 13 - Prob. 11STP Ch. 13 - Prob. 12STP Ch. 13 - Prob. 13STP Ch. 13 - Prob. 14STP Ch. 13 - Prob. 15STP Ch. 13 - Prob. 16STP Ch. 13 - Prob. 17STP Ch. 13 - Prob. 18STP

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