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प्रश्न
What is a simple microscope or a magnifying glass? Draw a ray diagram to show its function.
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उत्तर
A convex lens works as a simple microscope or a magnifying glass when an object is kept between its optical centre and the focus. The image of the object so obtained is virtual, upright, and magnified.
संबंधित प्रश्न
The following diagram shows an object AB and a converging lens L with foci F1 and F2 State three characteristics of the image in relation to the object.
A lens forms an erect, magnified, and virtual image of an object. Name the device which uses this principle.
What information about the nature of image is real or virtual, do you get from the sign of magnification + or -?
An object is placed at a distance of 20 cm in front of a concave lens of focal length 20 cm. find: the magnification of image.
Why is the focal length of the lens, used as a magnifying glass, kept short?
Define magnification produced by a lens. State its unit.
Name the lens for which magnification is always less than 1.
How is the magnification (m) produced by a lens related to the object distance (u) and the image distance (v)?
Draw a neat diagram to explain the action of a convergent (convex) lens as a reading glass (or magnifying glass). State the characteristics of the image formed.
Copy and complete the following ray diagram.
