It is given that, Hence the correct answer is C.
The value of \[\widehat{i}.(\widehat{j}\times \widehat{k})+\widehat{j}.(\widehat{i}\times \widehat{k})+\widehat{k}(\widehat{i}\times \widehat{j})\]is (A) \[0\] (B) \[-1\] (C) \[1\] (D) \[3\]
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Exercise 10.1
Answer the following as true or false. (i) \[\overrightarrow{a}\] and\[-\overrightarrow{a}\] are collinear. (ii) Two collinear vectors are always equal in magnitude. (iii) Two vectors having same magnitude are collinear. (iv) Two collinear vectors having the same magnitude are equal.
(i) the given statement is True. Vectors \[\overrightarrow{a}\] and \[-\overrightarrow{a}\]are parallel to the same line. (ii) The given statement is False. Collinear vectors are those vectors that...
In Figure, identify the following vectors. (i) Coinitial (ii) Equal (iii) Collinear but not equal
directions are not the same.
Classify the following as scalar and vector quantities. (i) time period (ii) distance (iii) force (iv) velocity (v) work done
(i) Time period is a scalar quantity as it has only magnitude. (ii) Distance is a scalar quantity as it has only magnitude. (iii) Force is a vector quantity as it has both magnitude and direction....
Classify the following measures as scalars and vectors. (i) \[10\] kg (ii) \[2\] metres north-west (iii) \[{{40}^{\circ }}\] (iv) \[40\] watt (v) \[{{10}^{-19}}\] coulomb (vi) \[20m/{{s}^{2}}\]
(i) \[10\] kg is a scalar quantity because it has only magnitude. (ii) \[2\] meters north-west is a vector quantity as it has both magnitude and direction. (iii) \[{{40}^{\circ }}\] is a scalar...
Represent graphically a displacement of \[40\] km, \[{{30}^{\circ }}\] east of north.
The vector \[\overline{OP}\] represents the displacement of \[40\] km, \[{{30}^{\circ }}\] east of north.