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प्रश्न
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उत्तर
Linear magnification is defined as the ratio of the height of the image to the height of the object. It is taken to be positive for an image to be virtual and erect and negative when the image is real and inverted.
Magnification produced by a concave mirror is:
Magnification = height of image / height of object.
It is a pure ratio and does not have any units.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Pole
An image formed by a ______ mirror is always of the same size as that of the object.
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What is the nature of spherical mirror?
Does the mirror mentioned in part (b) form real image for all locations of the object?
Answer the following question:
Distinguish between the convex mirror and the concave mirror.
Define the term Aperture.
The boxes in figure (a, b, c) represent mirrors; insert a mirror which will reflect the incident ray as shown in the diagram.
Define the term Pole.
Define the radius of curvature.
A converging lens of focal length f is placed at a distance 0.3 m from an object to produce an image on a screen 0.9 m from the lens. With the object and the screen in the same positions, an image of the object could also be produced on the screen by placing a converging lens of focal length.
