(a) Explanation The point which is used to determine the location of the image is called focal point. When the object is at an infinity, the rays coming from the object are almost parallel and converges at focal point after passes through the lens. Write the expression for the lens makers formula. 1 f = 1 a + 1 b Here, f is the focal length of the lens. a is the distance of the object. b is the distance of the image. Substitute ∞ for a in the above equation (b) To determine The method used to calculate the focal length of a converging lens.

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Author: SERWAY

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Chapter 36, Problem 36.2CQ

(a)

To determine

The conclusion that arrived from the discussion of the notion of infinity in real terms as it applies to the object's distances.

(b)

To determine

The method used to calculate the focal length of a converging lens.

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Chapter 36, Problem 36.1CQ

Chapter 36, Problem 36.3CQ

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The conclusion that arrived from the discussion of the notion of infinity in real terms as it applies to the object's distances.

Solution Summary: The author explains how the distance of the image from the lens is equal to the focal length of a converging lens.

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The conclusion that arrived from the discussion of the notion of infinity in real terms as it applies to the object's distances.

The method used to calculate the focal length of a converging lens.

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Chapter 36 Solutions