One sentence answer. Mirror height - 0.9m Dhruv’s height - 185 cm Aditya’s height - 170 cm Praveen’s height - 180 cm Who can see their full image is mirror?
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from the similar triangles RES and BEC in the above figure:BCRS
= d2d
BC=85cm(minimum length of the mirror)
from the similar triangles SEQ and SEO in the above figure:
COEQ
= d2d
CO=80cm (bottom of the mirror should be at a height of 85cm or less)
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Kepler-186f is an exoplanet orbiting the red dwarf Kepler-186, about 500 light-years from Earth. It was the first planet with a radius similar to Earth's to be discovered in the habitable zone of another star.
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