Physics
State the changes in the position, size and nature of the image when the object is brought from infinity up to the concave lens. Illustrate your answer by drawing ray diagrams.
Refraction Lens
31 Likes
Answer
(i) When the object is at infinity, the image is formed at the second focus F2, on the side of the object. It is virtual and erect. It is highly diminished in size.
(ii) When the object is at finite distance from the concave lens, the image is formed between the focus and optical centre, on the same side of lens as the object. It is virtual and erect. It is diminished in size.
Answered By
20 Likes
Related Questions
Draw a ray diagram to show how a converging lens is used as a magnifying glass to observe a small object. Mark on your diagram the foci of the lens and the position of the eye.
A lens forms an upright and diminished image of an object placed at its focal point. Name the lens and draw a ray diagram to show the formation of an image.
Draw a ray diagram to show how a converging lens can form an image of the Sun. Hence give a reason for the term 'burning glass' for a converging lens used in this manner.
State the changes in the position, size and nature of the image when the object is brought from infinity up to the convex lens. Illustrate your answer by drawing the ray diagrams.