A convex lens gives a virtual image only when the objects lies_________________?
Correct answer: D. between principal focus and optical center
- A. between principal focus and center of curvature
- B. beyond 2 f
- C. at the principal focus
- D. between principal focus and optical center
Explanation
A convex lens forms a virtual, erect and magnified image when the object is placed between the principal focus and the optical centre. In this position the refracted rays diverge and their backward extensions meet on the object side. The likely mistake is choosing a, because an object between f and 2f forms a real, inverted image rather than a virtual one.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Optics
Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
Practise Optics
665 free Optics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 11 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Optics questions
The minimum distance between an object and its real image in a convex lens is_____________?
A point where the incident parallel rays of light converge or appear to diverge after passing through a lens is called______________?
The value of critical angle for glass is_______________?
Image of an object 5 mm high is only 1 cm high. Magnification produced by lens is__________________?
Least distance of distinct vision_____________?
Two convex lenses of equal focal length f are placed in contact the resultant focal length of the combination is______________?