Microscopes, Telescopes and Visual Angle
About the Lecture
The lecture Microscopes, Telescopes and Visual Angle by Jared Rovny, PhD is from the course Geometrical Optics.
Included Quiz Questions
Where must an object be placed for a converging lens to create a magnified image?
- Inside the focal length of the lens
- Outside the focal length of the lens
- Between the focal point and the center of the circle which the curvature of the lens is part of
- Outside the center of the circle which the curvature of the lens is part of
- A converging lens always creates a magnified image
Which of the following objects has the greatest visual angle?
- A basketball very close to your face
- A star very far away
- The sun in the sky
- A large boat on the horizon
- The words on the page of a book you are reading
A telescope has an angular magnification of 2. How does the angular size of the image compare with the angular size of the original object?
- The angular size of the image is twice as great
- The angular size of the original object is twice as great
- The angular size of the image the square of the angular size of the object
- The angular size of the object is the square of the angular size of the image
- The angular size of the image equals the angular size of the object
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Author of lecture Microscopes, Telescopes and Visual Angle
Jared Rovny, PhD
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