Two vectors $\overrightarrow A $ and $\overrightarrow B $ are at right angles to each other, when
Two vectors $\overrightarrow A $ and $\overrightarrow B $ are at right angles to each other, when
- [AIIMS 1987]
- A
$\overrightarrow A + \overrightarrow B = 0$
- B
$\overrightarrow A - \overrightarrow B = 0$
- C
$\overrightarrow A \times \overrightarrow B = 0$
- D
$\overrightarrow A \,.\,\overrightarrow B = 0$
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