The angle of depression from the top of a light-house of two boats are 60° and 30° towards the west, if the two boats are 60m apart, then the height of the light house is
D = h (cotA - cotB) Here (h = height of light house) D = AB = 60 60 = h (cot30° - cot60°) 60 = h (√3-1/√3) 60 = h ((3-1)/√3) 2h/√3 = 60 m h = 60 × √3/2 = 30√3 m So height of the tower is = 30√3 m
In hill soils or acidic soils, nutrients are present except?
Deep burial of crop residue helps in controlling diseases by the following ways except
Which law explains that genes for different traits are sorted independently during gamete formation?
Which of the following sugar is found in maximum amount in honey
Crossing of a hybrid with one of its parents or an individual genetically similar to its parent is known as?
Indian Meteorological Department was established in 1875, with headquarter at -
The planets are kept in motion in their respective orbits by
The optimum time for sowing of cotton in north India is:
Agricultural economists which are involved in price determination & market channels are known as………………….
Which gas is typically used in the Totally Chlorine Free (TCF) bleaching method for cotton fiber?
