NEET UG PHYSICS MCQ: NUCLEI

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An electron has a mass of

9.1\,\, \times \,\,{10^{ - 31}}\,\,kg

. It revolves around the nucleus in a circular orbit of radius

0.529\,\, \times \,{10^{ - 10}}\,\,metre

at a speed of

2.2\,\, \times {10^6}\,\,m/s

. The magnitude of its linear momentum in this motion is

View answer and explanation

Correct option: B

2.0\,\, \times \,\,{10^{ - 24}}\,\,kg - m/s

Option B (

2.0 \times 10^{-24} kg - m/s

) is correct because linear momentum is the product of mass and velocity.

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