NEET Physics Refraction MCQ Question
In the diagram of image formation by a double convex lens, what is the relationship between the object distance (OB), image distance (DI), and the focal length (f) when the object is placed at infinity?
DI = f
OB = f
OB = DI
OB = 0
Correct Answer
Detailed Explanation
When the object is at infinity, the image formed by the lens is at its focal point, thus DI = f, as per Eq. (9.20) in the NCERT context.
Found an issue with this question?
Related Questions
More from Refraction
More from
Assertion (A): The thin lens formula is applicable to both convex and concave lenses for real and virtual images. | Reason (R): The focal points of a ...
Consider a diagram where a parallel beam of light is incident on a concave mirror. The reflected rays converge at a point on the principal axis. What ...
Match Column-I with Column-II. Column-I Column-II (a) Simple Microscope (i) Used for terrestrial observations (b) Refracting Telescope (...