Bihar Board Class 12 (Science) Vectors & 3D Geometry — practice questions
9 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Bihar Board Class 12 (Science) Vectors & 3D Geometry in the app →Three vectors $\vec a, \vec b, \vec c$ are coplanar if and only if:If a = 2i + 3j + k and b = i − j + 2k, then a · b equals:Two non-zero vectors a and b are PERPENDICULAR if and only if:A UNIT VECTOR in the direction of v = 3i + 4j is:The scalar triple product [a b c] geometrically represents:The vector triple product a × (b × c) simplifies via:The Cartesian equation of a plane with intercepts 2, 3, 6 on the x, y, z axes is:For direction cosines l, m, n of any line in 3D:The angle θ between two PLANES with normals n1 and n2 satisfies: