Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 26 - Geometrical Optics - Problems and Conceptual Exercises - Page 944: 98

Answer

infinity

Work Step by Step

We know that the index of refraction of the lens and that of the oil is the same and the light rays go straight without bending. Thus, if the light rays travel straight, they will be focused at infinity and hence the focus of the lens is infinity.
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