1
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Two poles are 10 m and 20 m high. The line joining their tops makes an angle of 15$$^\circ$$ with the horizontal. The distance between the poles is approximately equal to
2
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A vertical tower standing on a levelled field is mounted with a vertical flag staff of length 3 m. From a point on the field, the angles of elevation of the bottom and tip of the flag staff are 30$$^\circ$$ and 45$$^\circ$$, respectively. Which one of the following gives the best approximation to the height of the tower?
3
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The top of a hill when observed from the top and bottom of a building of height h is at angles of elevation p and q respectively. What is the height of the hill?
4
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A moving boat is observed from the top of a cliff of 150 m height. The angle of depression of the boat changes from 60$$^\circ$$ to 45$$^\circ$$ in 2 minutes. What is the speed to the boat in metres per hour?
Questions Asked from Height and Distance (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
NDA Subjects
Mathematics
Algebra
Sets, Relations and Functions Logarithms Quadratic Equations and Inequalities Sequence And Series Binomial Theorem Matrices Determinants Permutations and Combinations Probability Complex Numbers Vector Algebra Three Dimensional Geometry Statistics
Trigonometry
Trigonometric Angles and Equations Inverse Trigonometric Function Height and Distance Properties of Triangles
Coordinate Geometry
Calculus
English
General Studies