Questions
An object is placed 30 cm to the left of a diverging lens whose focal length is of magnitude 20 cm. Which one of the following correctly states the nature and position of the virtual image formed?
detailed solution
Correct option is B
When an object is placed between 2 f and f (focal length) of the diverging lens, the image is virtual, erect and diminished as shown in the graph. To compute the distance of the image from the lens, we apply1f=1v−1u⇒1−20=1v−130⇒v=−203020+30= - 12 cm (to the left of the diverging lens.)Talk to our academic expert!
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Image of the sun is formed by a binconvex lens of focal length f. The image is a circular patch of radius r and is formed on the focal plane of the lens. Choose the correct statement from the following
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