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प्रश्न
Fill in the following blank with suitable word:
If the magnification has a minus sign, than the image is ......... and .......
उत्तर
If the magnification has a minus sign, then the image is real and inverted.
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संबंधित प्रश्न
Where should an object be placed in front of the concave mirror so as to obtain its virtual, erect and magnified image?
The image formed by a concave mirror is virtual, erect and magnified. The position of object is:
(a) at focus
(b) between focus and centre of curvature
(c) at pole
(d) between pole and focus
If the magnification of a body of size 1 m is 2, what is the size of the image?
What is the nature of image formed by a concave mirror if the magnification produced by the mirror
+4
A small object is so placed in front of a convex lens of 5 cm focal length that a virtual image is formed at a distance of 25 cm. Find the magnification.
A magnifying lens has a focal length of 100 mm. An object whose size is 16 mm is placed at some distance from the lens so that an image is formed at a distance of 25 cm in front of the lens.
What is the distance between the object and the lens?
Assertion: The focal length of the mirror is /and the distance of the object from the focus is V then the magnification of the mirror will be `("f"/"f−u")`
Reason: Magnification = `"image distance"/ "object distance"` = `(-"v"/"u")`
What do you mean by linear magnification?
What is the nature of the image formed by a concave mirror if the magnification produced by the mirror is +4?
The power of a lens is +4D. Find the focal length of this lens. An object is placed at a distance of 50 cm from the optical centre of this lens. State the nature and magnification of the image formed by the lens and also draw a ray diagram to justify your answer.
