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प्रश्न
A convex lens produces on a screen an image twice the size of the object. If the position of image and object be interchanged, what will be the magnification then?
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उत्तर
On interchanging the position of image and object, the magnification will be 1/2.
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. Where is the object placed in relation to the lens?
A lens forms an erect, magnified, and virtual image of an object. Name the device which uses this principle.
Define magnifying power of a simple microscope. How can it be increased?
The magnification by a lens is +0.5. Name the lens and state how are u and v related?
What are conjugate foci?
Name the lens used as a magnifying glass.
Define magnification produced by a lens. State its unit.
What is a simple microscope or a magnifying glass? Draw a ray diagram to show its function.
State two uses of magnifying glass.
