DiagramModerate3 marks
An object AB is placed between O and F1 on the principal axis of a converging lens as shown in the diagram. Copy the diagram and by using three standard rays starting from point A, obtain an image of the object AB.
Topic: Lenses and image formation
Previous-year question practice database
Answer
Solution diagram
Exam answer
Draw the standard convex-lens ray diagram for an object between O and F₁; the image is virtual, erect and magnified on the same side of the lens.
More from Refraction through a Lens
The distance (V) of a virtual image formed by a lens of focal length 15 cm never exceeds a certain finite value, then this value will be:
(a) less than 15 cm
(b) between 15 cm to 30 cm
(c) less than or equal to 30 cm
(d) less than or equal to 15 cm2026Identify the type of lens used.2026What would be the magnification (more than 1 / less than 1 / equal to 1) if the object is placed between F and 2F of the above lens?2026An object placed in front of a convex lens, forms an image of same size on a screen. Moving the object 12 cm closer to the lens results in the formation of a real image which is three times the size of the object. Calculate the focal length of the lens.2026For a real image formed by a convex lens, the ratio of I : O = 2 : 5, then the object is:
(I is the height of the image and O is the height of the object)
(a) between O and F
(b) beyond 2F
(c) at F
(d) between F and 2F2025 An object is placed at 2F position of a convex lens. Draw a ray diagram showing the formation of the image.2025