9 Questions
What is the object distance for the concave lens with a focal length of 10cm?
40cm
What is the image distance for the concave lens with a focal length of 10cm?
8cm
What is the magnification produced by the concave lens with a focal length of 10cm?
0.25
What is the formula to calculate the magnification produced by a lens?
The formula to calculate the magnification produced by a lens is magnification = (-) image distance / object distance.
What is the formula to calculate the focal length of a lens?
The formula to calculate the focal length of a lens is 1/f = 1/do + 1/di, where f is the focal length, do is the object distance, and di is the image distance.
What is the object distance for a concave lens with a focal length of 10cm, if the magnification is ¼?
The object distance for a concave lens with a focal length of 10cm, if the magnification is ¼, is 40cm.
What is the formula to calculate the magnification produced by a lens?
Magnification (m) = -v/u, where v is the image distance and u is the object distance.
What is the relationship between the focal length and the image distance for a concave lens?
For a concave lens, the focal length (f) and the image distance (v) are negative.
What is the formula to calculate the object distance for a concave lens?
1/f = 1/v - 1/u, where f is the focal length, v is the image distance, and u is the object distance.
Study Notes
Lens and Image Properties
- A concave lens is used to produce an erect image.
- The focal length of the concave lens is 10cm.
- The magnification of the image is ¼, meaning the image is one-quarter the size of the object.
Object Properties
- The object distance is not specified, but it can be calculated using the lens equation: 1/f = 1/do + 1/di, where do is the object distance and di is the image distance.
Test your knowledge of concave lenses and image formation with this quiz. Calculate the object distance for a concave lens with a focal length of 10cm and a magnification of ¼ to determine the position of the object in relation to the lens.
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