Ex 10.3, 18 - If a is a nonzero vector of magnitude a - Ex 10.3

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  1. Chapter 10 Class 12 Vector Algebra
  2. Serial order wise

Transcript

Ex 10.3, 18 If is a nonzero vector of magnitude a and a nonzero scalar, then is unit vector if (A) = 1 (B) = 1 (C) a = | | (D) a = 1 Given, magnitude of vector is a So, = a For a non zero scalar is a unit vector magnitude of is 1 So, = 1 = 1 = 1 = 1 Hence D is the correct answer.

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.