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Q1. The ratio of the length of a rod and its shadow is 1 : `sqrt(3)` . The angle of elevation of the sum is 


(a) 30o


(b) 45o


(c) 60o


(d) 90o


Q2. If the angle of elevation of a tower from a distance of 100 metres from its foot is 60o, then the height of the tower is 


Q3. If the altitude of the sum is at 60o, then the height of the vertical tower that will cast a shadow of length 30 m is 


Q4. If the angles of elevation of a tower from two points distant a and b (a>b) from its foot and in the same straight line from it are 30o and 60o, then the height of the tower is 


Q5. If the angles of elevation of the top of a tower from two points distant a and b from the base and in the same straight line with it are complementary, then the height of the tower is 


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