12. An object of height 8 cm is
placed before a concave mirror of focal length 20 cm so that a real image is formed at a
distance of 60 cm from it.Write
the object-distance.
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Wheat is one of the major cereal crops after rice and maize. It has been growing since time immemorial in Nepal. It is grown in Terai, river basins, mid-hills, and high-hills of Nepal during winter season i.e. October to July (CIMMYT, 2001).
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