jee_main_2026_24_january_evening - Vector Algebra Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #4 Projection of a Vector
Let a=2 i- j- k, b= i+3 j- k and c=2 i+ j+3 k. Let v be the vector in the plane of the vectors a and b, such that the length of its projection on the vector c is 1√(14). Then | v| is equal to
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QUESTION #19 Cross Product and Dot Product
Let a=2 i-5 j+5 k and b= i- j+3 k. If c is a vector such that 2( a× c)+3( b× c)= 0 and ( a- b)· c=-97, then | c× k|² is equal to
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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