Multiplication of vector \vec{a} and scalar λ is denoted as ______

Category: QuestionsMultiplication of vector \vec{a} and scalar λ is denoted as ______
Editor">Editor Staff asked 11 months ago

Multiplication of vector \vec{a} and scalar λ is denoted as ______
 
(a) λ\vec{a}
 
(b) \vec{a}
 
(c) λ
 
(d) 0
 
I had been asked this question in quiz.
 
My doubt is from Multiplication of a Vector by a Scalar in portion Vector Algebra of Mathematics – Class 12
NCERT Solutions for Subject Clas 12 Math Select the correct answer from above options 
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1 Answers
Editor">Editor Staff answered 11 months ago

The correct answer is (a) λ\vec{a}
 
The best explanation: Multiplication of vector \vec{a} and scalar λ is denoted as λ\vec{a}, as \vec{a} is the original vector. λ is the scalar which can have any integer value which is to be multiplied to the given vector\vec{a}, whereas 0 can only be the answer if the scalar λ = 0.