1

NDA General Ability 16 April 2023

MCQ (Single Correct Answer)

+4

-1.33

Two forces of 5⋅0 N each are acting on a point mass. If the angle between the forces is 60°, then the net force acting on the point mass has magnitude close to :

2

NDA General Ability 16 April 2023

MCQ (Single Correct Answer)

+4

-1.33

A rectangle ABCD is kept in front of a concave mirror of focal length f with its corners A and B being, respectively, at distances 2f and 3f from the mirror with AB along the principal axis as shown in the figure. It forms an image A'B'C'D' in front of the mirror. What is the ratio of B'C' to A'D'?

3

NDA General Ability 16 April 2023

MCQ (Single Correct Answer)

+4

-1.33

Shown in the figure are two plane mirrors XY and YZ (XY ⊥ YZ) joined at their edge. Also shown is a light ray falling on one of the mirrors and reflected back parallel to its original path as a result of this arrangement. The two mirrors are now rotated by an angle θ to their new position X'YZ', as shown. As a result the new reflected ray is at an angle α from the original reflected ray. Then :

4

NDA General Ability 16 April 2023

MCQ (Single Correct Answer)

+4

-1.33

A railway wagon (open at the top) of mass M

_{1}is moving with speed v_{1}along a straight track. As a result of rain, after some time it gets partially filled with water so that the mass of the wagon becomes M_{2}and speed becomes v_{2}. Taking the rain to be falling vertically and the water stationery inside the wagon, the relation between the two speeds v_{1}and v_{2}is :Questions Asked from Physics (Marks 4)

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