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LenKa [72]
3 years ago
12

A section of a sphere has a radius of curvature of 0.72 m. If this section is painted with a reflective coating on both sides, w

hat is the focal length of:
Physics
1 answer:
vaieri [72.5K]3 years ago
3 0

Answer:

The value is  f = 0.36 \  m

Explanation:

From the question we are told that

  The radius of curvature is  R =  0.72 \  m

   

Generally the radius of curvature is mathematically represented as

        R  =  2f

Here f is the focal length hence

       f =  \frac{R}{2}

=>     f =  \frac{0.72}{2}

=>     f = 0.36 \  m

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