1. i) If the image of an object is at the focus of a concave lens, where is the object located?
ii)What is the distance between the optic centre and the focus called?
2. a)Draw a ray diagram in which a convex lens forms a real image
i) Beyond 2F
ii) At 2F
b) A ray of light is incident on a glass slab. Suggest a possibility so that the angle of incidence and angle of refraction is zero.
3. A lens acts like a magnifying glass. Identify the lens and draw the appropriate ray diagram depicting the lens as a magnifying glass. Mention the nature of the image formed.
4. You are required to form an upright (erect) image which is diminished using a lens. State the nature of the lens and draw a ray diagram in support of your answer.
Kindly post your questions in different threads to get all the answers.
(i) In this case, the object is situated at infinity.
(i) In this case, the object is situated at infinity.