A solar cooker, really a concave mirror pointed at the Sun, focuses the Sun’s rays 13.8 cm in front of the mirror. Part A What is the radius

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A solar cooker, really a concave mirror pointed at the Sun, focuses the Sun’s rays 13.8 cm in front of the mirror. Part A What is the radius of the spherical surface from which the mirror was made?

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Jezebel 3 months 2021-08-02T15:19:58+00:00 1 Answers 4 views 0

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    2021-08-02T15:21:55+00:00

    From the concept of optics on a curvature of a spherical mirror, the proportion for which the focal length is equivalent to half the radius of curvature is fulfilled. Mathematically this is

    f = \frac{R}{2}

    Here,

    f = Focal Length

    R = Radius

    Rearranging to find the radius we have,

    R = 2f

    Replacing with our values,

    R = 2(13.8cm)

    R = 27.6cm

    Therefore the radius of the spherical surface from which the mirror was made is 27.6cm

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