**Question :** If the sum of the two unit vectors is also a unit vector, then magnitude of their difference is

(A) \sqrt{2}

(B) \sqrt{3}

(C) \sqrt{4}

(D) \sqrt{7}

**Answer :** option (B)

**Solution :**

with
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**Question :** If the sum of the two unit vectors is also a unit vector, then magnitude of their difference is

(A) \sqrt{2}

(B) \sqrt{3}

(C) \sqrt{4}

(D) \sqrt{7}

**Answer :** option (B)

**Solution :**