(a) An object is placed well outside the principal focus of a convex lens. Draw a ray diagram to show how the image is formed, and say whether the image is real or virtual.
(b) What is the effect on the size and position of the image of moving the object (i) towards the lens, and (ii) away from the lens?
Answers
Explanation:
(i) When that object is moved toward the lens, its image size increases until the object is in focus. The size decreases, but the image remains enlarged. The image moves from the lens (on the another side of the lens) until the object is in focus. The image is created on its same side of the lens as that object.
(ii) When that object is removed from the lens, the size continues to decrease and the image moves toward the lens.
The ray diagram is given in the attachment below
You can get all the answers of Chapter 5 in the link below:
https://brainly.in/question/14963222
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Answer:
a) Above diagram shows Ray diagram when object keep outside the principal focus of a convex lens.
(b)
(i) If object is moved the lens, the image size will keep on increasing till the object reaches focus. After that, the size decreases but the image remains magnified. The image keeps moving away from the lens (on the opposite side of the lens) till the object reaches focus; after that the image is formed on the same side of the lens as the object.
(ii) If object is moved away from lens, the size will keep on decreasing and the image keeps on shifting towards the lens.
Explanation:
a) Above diagram shows Ray diagram when object keep outside the principal focus of a convex lens.
(b)
(i) If object is moved the lens, the image size will keep on increasing till the object reaches focus. After that, the size decreases but the image remains magnified. The image keeps moving away from the lens (on the opposite side of the lens) till the object reaches focus; after that the image is formed on the same side of the lens as the object.
(ii) If object is moved away from lens, the size will keep on decreasing and the image keeps on shifting towards the lens.