An isolated conducting sphere has a 15 cm radius. One wire carries a current of 1.0000046 A into it while another wire carries a
current of 1.0000000 A out of it. How long in seconds would it take for the sphere to increase in potential by 890 V?
1 answer:
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a) The mirror's radius of curvature will be 2.7 cm
B) The magnification of the image will be 4.0.
<h3>What is a concave mirror?</h3>When a hollow spherical is divided into pieces and the exterior surface of each cut portion is painted, it forms a mirror, with the inner surface reflecting the light.
From the mirror equation;
Hence,
The radius of curvature is twice of the focal length;
Hence, the mirror's radius of curvature will be 2.7 cm.
The magnification factor is found as;
Hence, the magnification of the image will be 4.0.
To learn more about the concave mirror, refer to the link;
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