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प्रश्न
What information we seek by the linear magnification of the image when it is positive or negative?
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उत्तर
If magnification is positive, then the image will be real and inverted, and if negative then the image will be virtual and erect.
संबंधित प्रश्न
Draw a neat labelled ray diagram to show the formation of an image by a magnifying glass. State three characteristics of the image.
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?
The magnification by a lens is -3. Name the lens and state how are u and v related?
What are conjugate foci?
Name the lens used as a magnifying glass.
Will the image formed by a magnifying glass be real or virtual?
Name the lens for which magnification can be 1. For what position of the object will the magnification be 1?
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.
Write an expression for the magnifying power of a simple microscope. How can it be increased?
