An electron has a mass of 9.1 × 10 –31 kg. It revolves round the nucleus in a circular…
Physics · JEE Advanced · NTA Exams — Atoms and Nuclei
An electron has a mass of 9.1 × 10–31 kg. It revolves round the nucleus in a circular orbit of radius 0.529 × 10–10 metre at a speed of 2.2 × 106 m/s. The magnitude of its linear momentum in this motion is
- 1.1 × 10–34 kg–m/s
- 2.0 × 10–24 kg–m/s
- 4.0 × 10–24 kg–m/s
- 4.0 × 10–31 kg–m/s
Answer
(B) 2.0 × 10 –24 kg–m/s
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