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NEET 2012
Exam
NEET
Year
2012
Subject
Physics
Chapter
Rotational Motion

NEET 2012 · Physics · Rotational Motion

When a mass is rotating in a plane about a fixed point, its angular...

When a mass is rotating in a plane about a fixed point, its angular momentum is directed along

Options

  1. Aa line perpendicular to the plane of rotation
  2. Bthe line making an angle of 45∘45^{\circ} to the plane of rotation
  3. Cthe radius
  4. Dthe tangent to the orbit

Correct answer

A. a line perpendicular to the plane of rotation

Step-by-step solution

We knows L=m(r×v)\mathbf{L}=m(\mathbf{r} \times \mathbf{v}) So here, angular momentum is directed along a line perpendicular to the plane of rotation.
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