the minimum distance from a real object to the real image in a concave mirror is equal to
Answers
Answer:
zero ..
Explanation:
The minimum distance between an object and its real image in the case of a concave mirror is Zero. When the object is at the 2F distance i.e. the center of curvature, then the image is real and formed inverted at the same distance.
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Answer:
Astronomers have been able to image galaxies that are over 13 billion light years away using reflecting telescopes which use concave mirrors (mostly parabolic). The problems with imaging these objects is not so much the distance as it is the time it takes to collect enough photons from the source to produce an image. This is aided by mirror size and exposure length as well as the sensitivity of the imaging camera. But the mirrors used collect the photons just fine.