Physics
The diagram given below in figure shows the position of an object OA in relation to a converging lens L whose foci are at F1 and F2.
(i) Draw two rays to locate the position of the image.
(ii) State the position of the image with reference to the lens.
(iii) Describe the three characteristics of the image.
(iv) Describe how the distance of the image from the lens and its size change as the object is moved towards F1.
Refraction Lens
ICSE
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Answer
(i) Below ray diagram shows the position of the image:
(ii) Position of images will be more than twice the focal length of the lens.
(iii) The three characteristics of this image are magnified, real and inverted.
(iv) When the object move towards F1, the image will shift away from F2 and it will be magnified.
The image will form at infinity and it is highly magnified at F1.
Between F1 and optical centre, the image will form on the same side of the object and will be magnified.
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