A vector F _ 1 is along the positive Y–axis. If its vector product with another vector F…

Physics · JEE Main · NTA Exams — Physics and Measurement

A vector \(\overrightarrow{\mathrm{F}}_{1}\) is along the positive Y–axis. If its vector product with another vector \(\overrightarrow{\mathrm{F}}_{2}\) is zero, then \(\overrightarrow{\mathrm{F}}_{2}\) could be
  1. \(4 \hat{\mathrm{j}}\)
  2. \(\hat{\mathrm{j}}+\hat{\mathrm{k}}\)
  3. \(\hat{\mathrm{j}}-\hat{\mathrm{k}}\)
  4. \(-4 \hat{\mathrm{i}}\)

Answer

(A) 4 j

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