It is desired to cast the image of a lamp magnified 5 times upon a wall 4 m distant from the lamp. What kind of spherical mirror is required and what is its position?

Question

Answer

convex mirror of radius 1.4 m which is 2.2 m from lamp

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concave mirror of radius 1.67 m  which is 1 m away from lamp

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concave mirror of radius 2.1 m which is 5.1 m from mirror

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convex mirror of radius 0.83 m which is 1 m from lamp

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It is desired to cast the image of a lamp magnified 5 times upon a wall 4 m dist...

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