# Unit vector which is perpendicular to the vector 4î + 3&jcirc; is _____

Category: QuestionsUnit vector which is perpendicular to the vector 4î + 3&jcirc; is _____
Editor">Editor Staff asked 1 year ago

Unit vector which is perpendicular to the vector 4î + 3&jcirc; is _____

(a) &jcirc;

(b) î

(c) 4î + 3&jcirc;

(d)
z
^

This question was addressed to me in an online quiz.

This interesting question is from Vector Addition topic in chapter Motion in a Plane of Physics – Class 11
Select the correct answer from above options
Interview Questions and Answers, Database Interview Questions and Answers for Freshers and Experience

Editor">Editor Staff answered 1 year ago

The correct option is (d)
z
^

Explanation: The dot product of any two vectors which are perpendicular to each other is 0. The dot product of all the vectors in the options with 4î + 3&jcirc; is non-zero except for
z
^
. Hence
z
^
is perpendicular to the given vector.

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