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प्रश्न
Define the term magnifying power of a simple microscope. How does it depend on the focal length of the lens used?
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उत्तर
The magnifying power of a simple microscope is defined as the ratio of the angle subtended by the image at the eye to the angle subtended by the object at the eye if it is assumed to be placed at the least distance of distinct vision.
Shorter the focal length of the lens used, larger is its magnifying power.
संबंधित प्रश्न
The following diagram shows an object AB and a converging lens L with foci F1 and F2. Draw two rays from the object AB and complete the diagram to locate the position of the image CD. Also mark on the diagram the position of eye from where the image can be viewed.
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?
If the magnification produced by a lens is - 0.5, the correct statement is ______.
The magnification by a lens is +0.5. Name the lens and state how are u and v related?
The maximum magnifying power of a convex lens of focal length 5 cm can be ______.
Define magnification produced by a lens. State its unit.
Name the lens for which magnification is always less than 1.
What is a simple microscope or a magnifying glass? Draw a ray diagram to show its function.
Write an expression for the magnifying power of a simple microscope. How can it be increased?
