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Q.If a⃗\vec{a} and b⃗\vec{b} are two vectors such that ∣a⃗+b⃗∣=∣a⃗∣|\vec{a} + \vec{b}| = |\vec{a}|, then

a
a⃗⋅b⃗=0\vec{a} \cdot \vec{b} = 0
b
∣b⃗∣=0|\vec{b}| = 0
c
a⃗⋅b⃗=∣a⃗∣∣b⃗∣\vec{a} \cdot \vec{b} = |\vec{a}| |\vec{b}|
d
a⃗=0⃗\vec{a} = \vec{0}

Correct Answer: Option B

The correct solution involves applying the fundamental concept to derive the final value step by step...

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