Short answerEasy1 mark
3(i)
The graph below shows the variation of image distance (v) with the object distance (u) when an object is kept in front of a lens.
What 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?
Topic: Magnification by a convex lens
Question wording verified against source paper
Answer
Exam answer
More than 1.
Explanation
For an object between F and 2F of a convex lens, the real image forms beyond 2F and is magnified.
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.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.2025How will the size of the image change if we, ONLY replace the lens in the above arrangement with another lens of a greater focal length?2025