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प्रश्न
In image formation from spherical mirrors, only paraxial rays are considered because they
पर्याय
are easy to handle geometrically
contain most of the intensity of the incident light
from nearly a point image of a point source
show minimum dispersion effect.
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उत्तर
form nearly a point image of a point source
Since, when reflected back, they meet at a single point forming a point image of a point source.
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