Advertisements
Advertisements
प्रश्न
Define magnification produced by a lens. State its unit.
Advertisements
उत्तर
The magnification produced by a lens is defined as the ratio of the size of the image to the size of the object, i.e.,
Magnification (m) = `"Size of the image"/"Size of the object"`
It has no unit.
APPEARS IN
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.
What is a magnifying glass?
Where is the object placed with respect to the principal focus of a magnifying glass, so as to see its enlarged image? Where is the image obtained?
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?
Why is the focal length of the lens, used as a magnifying glass, kept short?
Show with the help of a ray diagram, the path of the ray when incident normally on the first surface of the glass block, through the block and the liquid.
What is a simple microscope or a magnifying glass? Draw a ray diagram to show its function.
Copy and complete the following ray diagram.
An object AB is placed between 2F1 and F1 on the principal axis of a convex lens as shown in the diagram. Copy the diagram and using three rays starting from point A, obtain the image of the object formed by the lens.
