NEET UG PHYSICS MCQ: MOTION IN PLANE

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Statement-I: The value of

\hat{\mathrm{i}}(\hat{\mathrm{j}} \times \hat{\mathrm{k}})+\hat{\mathrm{j}}(\hat{\mathrm{k}} \times \hat{\mathrm{i}})+\hat{\mathrm{k}} \cdot(\hat{\mathrm{i}} \times \hat{\mathrm{j}})

is equal to 3
Statement-II: If

\hat{a}, \hat{b}, \hat{c}

are mutually perpendicular unit vectors, then

[\hat{a}, \hat{b}, \hat{c}]=1

View answer and explanation

Correct option: A

Statement-I is true and statement-II is true

Statement-I is true because the scalar triple product simplifies to 3. Statement-II is true because the scalar triple product of mutually perpendicular unit vectors is 1.

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