Question
What is called a spherical mirror? Describe its two types with proper diagrams.
✓
Answer
When reflecting face of a mirror is made spherical, it is called a spherical mirror.
⇒ To prepare a spherical mirror, a thin spherical shell of glass is cut, parallel to any of its diameters.Then we separate the smaller part. Now if its inner face is made reflecting then we get a concave mirror and if its outer face is made reflecting then we get a convex mirror.
In above diagrams, backsides of both the mirrors are shown shaded which are non-reflecting. For a large shining spoon, its inner face can be treated nearly like a concave mirror whereas its outer face can be treated nearly like a convex mirror.
⇒ To prepare a spherical mirror, a thin spherical shell of glass is cut, parallel to any of its diameters.Then we separate the smaller part. Now if its inner face is made reflecting then we get a concave mirror and if its outer face is made reflecting then we get a convex mirror.
In above diagrams, backsides of both the mirrors are shown shaded which are non-reflecting. For a large shining spoon, its inner face can be treated nearly like a concave mirror whereas its outer face can be treated nearly like a convex mirror.
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