Advertisements
Advertisements
प्रश्न
Name the lens for which magnification can be 1. For what position of the object will the magnification be 1?
Advertisements
उत्तर
The lens for which magnification can be 1 is a convex lens. For this, the object must be at 2F (i.e.r at distance twice the focal length, in front of the lens).
संबंधित प्रश्न
The speed of light in air is 3 × 108 m s-1. Calculate the speed of light in glass. The refractive index of glass is 1.5
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?
A magnifying glass forms ______.
Ray diagram for the formation of image by a magnifying glass.

If the magnification produced by a lens is - 0.5, the correct statement is ______.
Why is the focal length of the lens, used as a magnifying glass, kept short?
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?
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?
