Question

source is at a distance 35 cm on the optical axis from a spherical concave mirror having a foc
length 25 cm. At what distance measured along the optical axis from the concave mirror should a plan
reflection from the concave mirror) to coincide with the point source?
mirror (perpendicular to principal axis) be placed for the image it forms (due to rays falling on it an​

Answer 1

Idk the answer
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Hope it helps

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