Statement I: Cross product of vectors does not obey commutative law. \ Statement II : If a quantity

Question

Statement I: Cross product of vectors does not obey commutative law. \ Statement II : If a quantity is formed by cross product of two vectors, the quantity is also a vector quantity.

Professor PC Thomas Classes · Answer

(a): $\because \vec{a} 	imes \vec{b}=\vec{b} 	imes \vec{a}$ But $\vec{a} 	imes \vec{b}=-\vec{b} 	imes \vec{a}$ Here, cross product does not obey commutative law.