Imagine you were given a converging lens and a meter stick and sent outside on a sunny day. In a few sentences, describe a method to measure

Question

Imagine you were given a converging lens and a meter stick and sent outside on a sunny day. In a few sentences, describe a method to measure, as accurately as possible, the focal length of the lens using only the lens, a meter stick, and your outside surroundings. Explain your reasoning

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Gia Bảo 5 years 2021-07-14T15:21:31+00:00 1 Answers 82 views 0

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  1. nguyetanh
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    2021-07-14T15:23:27+00:00
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    Answer:

    the Sun is the object that is at a very great distance and the focus point of the sun’s shape is the distance to the magnesia, this image is equal to the seal distance

    Explanation:

    The method for measuring the focal length of a lens is based on the use of the constructor’s equation

            \frac{1}{f } = \frac{1}{p} + \frac{1}{q}

    where q and q are the distance to the object and the image respectively, f is the focal length.

    If we place the object very far away (infinity) the equation remains

            \frac{1}{f} = \frac{1}{q}

    Therefore with this we can devise a means for measuring the Sun is the object that is at a very great distance and the focus point of the sun’s shape is the distance to the magnesia, this image is equal to the seal distance

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