PhysicsMedium202×since 2002Q8375If two vectors P→=i^+2mj^+mk^\overrightarrow P = \widehat i + 2m\widehat j + m\widehat kP=i+2mj+mk and Q→=4i^−2j^+mk^\overrightarrow Q = 4\widehat i - 2\widehat j + m\widehat kQ=4i−2j+mk are perpendicular to each other. Then, the value of m will be :A−1-1−1B3C1D2Check answerSkip