Atoms And Nuclei Question 11

Question: An electron has a mass of 9.1×1031kg . It revolves round the nucleus in a circular orbit of radius 0.529×1010metre at a speed of 2.2×106m/s . The magnitude of its linear momentum in this motion is [AFMC 1988]

Options:

A) 1.1×1034kgm/s

B) 2.0×1024kgm/s

C) 4.0×1024kgm/s

D) 4.0×1031kgm/s

Show Answer

Answer:

Correct Answer: B

Solution:

Linear momentum =mv=9.1×1031×2.2×106 =2.0×1024kgm/s



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक