If a unit vector is represented as u = 0 ⋅ 4  ^ + 0 ⋅ 7  ^ + c k ^ , then the value of ' c ' is

Physics - Vectors Question with Solution | TestHub

PhysicsVectorsMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

If a unit vector is represented as $u = 0 \cdot 4 \overset{}{^} + 0 \cdot 7 \overset{}{^} + c \hat{k}$ , then the value of ' $c$ ' is

Answer:

Solution:

(D) $0. 4^{2} + 0. 7^{2} + c^{2} = 1$ Thus, $c^{2} = 1 - 0.65 = 0.35$ , or $c = 0.35$

Stream:MHT_CETSubject:PhysicsTopic:VectorsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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