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प्रश्न
What is the nature of the image formed by a convex lens if the magnification produced by the lens is, – 0.5?
उत्तर
If the magnification produced by the lens is -0.5, the image will be real and inverted. It is because if the magnification produced by a lens has a negative value, the image is always real and inverted.
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संबंधित प्रश्न
A student has obtained an image of a well-illuminated distant object on a screen to determine the focal length, F1of the given spherical mirror. The teacher then gave him another mirror of focal length, F2 and asked him to obtain a focused image of the same object on the same screen. The student found that in order to focus the same object using the second mirror, he has to move the mirror away from the screen. From this observation, it may be concluded that both the spherical mirrors given to the student were (select the correct option)
(A) Concave and F1 < F2
(B) Concave and F1 > F2
(C) Convex and F1 < F2
(D) Convex and F1 > F2
What is the magnification of the images formed by plane mirrors and why?
For which positions of the object does a concave mirror produce an inverted, magnified an real image?
A virtual, erect and magnified image of an object is to be produced with a concave mirror of focal length 12 cm. Which of the following object distance should be chosen for this purpose?
(i) 10 cm
(ii) 15 cm
(iii) 20 cm
Give reason for your choi
What is the nature of image formed by a concave mirror if the magnification produced by the mirror
+4
Fill in the following blank with suitable word:
If the magnification has a plus sign, than image is ......... and.........
A lens of focal length 12 cm forms an erect image three times the size of the object. The distance between the object and image is ______.
When an object is placed at a distance of 36 cm from a convex lens, an image of the same size as the object is formed. What will be the nature of image formed when the object is placed at a distance of:
10 cm from the lens?
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.
Magnification produced by a concave lens is always:
(a) more than 1
(b) equal to 1
(c) less than 1
(d) more than 1 or less than 1
