At which of the following distances from the lens should a slide be placed on a slide projector if f is the focal length of the projector length?

by Sunday | Aug 31 | Physics WAEC | 0 comments

A. less than f
B. greater than f but less than 3f
C. equal to f
D. equal to 2f
E. greater than 2f

Correct Answer:

Option C – equal to f

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