For a convex lens to form a virtual image the objectmust be located at some distance less than the focallength.TrueFalse

Given data: Lens type : convex lens Image formed : virtual Required: The location of the object

Answered: For a convex lens to form a virtual…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter18: Refraction And Lenses

Section: Chapter Questions

Problem 72A

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Similar questions

Let objective and eyepiece of a compound microscope have focal lengths of 2.5 cm and 10 cm, respectively and be separated by 12 cm. A 70- mobject is placed 6.0 cm from the objective. How large is the virtual image formed by the objective-eyepiece system?
Use the thin—lens equation to show that the magnification for a thin lens is determined by its focal length and the object distance and is given by m=f/(fd0).
You hold a 5.0 cm-focal length magnifying glass as close as possible to your eye. If you have a normal near point, what is the magnification?
A thin lens has two focal points, one on either side of the lens at equal distances from its center, and should behave the same for light entering from either side. Look backward and forward through a pair of eyeglasses and comment on whether they are thin lenses.
The objective and the eyepiece of a microscope have the focal lengths 3 cm and 10 cm respectively. Decide about the distance between the objective and the eyepiece if we need a 10 x magnification from the objective/eyepiece compound system.
A magnifying glass forms an image 10 cm on the opposite side of the lens from the object, which is 10 cm away. What is the magnification of this lens for a person with a normal near point if their eye 12 cm from the object?
In a reflecting telescope the objective is a concave mirror of radius of curvature 2m and an eyepiece is a convex lens of focal length 5 cm. Find the apparent size of a 25-m tree at a distance of 10 km that you would perceive when looking through the telescope.
A far-sighted person has a near point of 100 cm. How far in front or behind the retina does the image of an object placed 25 cm from the eye form? Use the cornea to retina distance of 25 cm.
Objects viewed through a microscope are placed very close to the focal point of the objective lens. Show that the minimum separation x of two objects resolvable through the microscope is given by x=1.22f0D , where f0is the focal length and D is the diameter of the objective lens as shown below.
Find the focal length of a meniscus lens with R1=20cmand R2=15cm . Assume that the index of refraction of the lens is 1.5.
What range of magnification is possible with a 7.0 cm-focal length converging lens?
It has become common to replace the cataract-clouded lens of the eye with an internal lens. This intraocular lens can be chosen so that the person has perfect distant vision. Will the person be able to read without glasses? If the person was nearsighted, is the power of the intraocular lens greater or less than the removed lens?

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For a convex lens to form a virtual image the object must be located at some distance less than the focal length. True False