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If vectors A = cos ωt i + sin ωt j and B = cos ωt/2 i + sin ωt/2 j are functions of time,

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If vectors A = cos ωt i + sin ωt j and B = cos ωt/2 i + sin ωt/2 j are functions of time, then the value of t at which they are orthogonal to each other is

(a) t = π/ω

(b) t = 0

(c) t =  π/4ω

(d) t = π/2ω

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1 Answer

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Best answer

Correct option (a) t = π/ω

Explanation:

Two vectors A and B are orthogonal to each other, if their scalar product is zero i.e. vector(A.B) = 0.

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