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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:- Centre of curvature
Image formed by a convex ______ is always virtual and smaller in size.
A ray of light is incident on a plane mirror at an angle of 30°. What is the angle of reflection
A 2.0 cm tall object is placed 40 cm from a diverging lens of focal length 15 cm. Find the position and size of the image.
The diverging lens in part (a) is replaced by a converging lens also of focal length 100 mm. The object remains in the same position and an image is formed by the converging lens. Compare two properties of this image with those of the image formed by the diverging lens in part (a).
Define the term Aperture.
What is a mirror formula?
In torches, search lights and headlights of vehicles the bulb is placed ______.
