4] State true or false
(1)
The distance between the focus and the pole is called radius of curvature.
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7
Explanation:
The distance from the pole to the center of curvature is called (no surprise, I hope) the radius of curvature (r). The distance from the pole to the focal point is called the focal length (f). The focal length of a spherical mirror is then approximately half its radius of curvature.
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11
Explanation:
ya it's true buddy and goo ahead
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