# Application of the lens formula

Not what you're looking for?

A slide projector produces a 500 times enlarged image of a slide on a screen 10m away. If the screen is moved 2m closer, by what distance should the slide be moved towards or away from the lens so that the image remains focused on the screen? What is the magnification in this case? Assume that the projector consists of a single convex lens for magnification.

##### Purchase this Solution

##### Solution Summary

Answer with detailed mathematical steps. The applications of the lens formulas are given.

##### Solution Preview

We have 1/f = (1/v) - (1/u)

Where f is the focal length of the lens, u the x coordinate of the object and v is the x coordinate of the image.

In the first case, v = 10m and the magnification M = v/u = ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### The Moon

Test your knowledge of moon phases and movement.

##### Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

##### Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

##### Basic Physics

This quiz will test your knowledge about basic Physics.

##### Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.