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A positronium consists of an electron an...

A positronium consists of an electron and a positron revolving about their common centre of mass. Calculate the separation between the electron and positron in their first excited state:

A

0.529 A

B

1.058 A

C

2.116 A

D

4.232 A

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PHYSICS GALAXY - ASHISH ARORA-ATOMIC PHYSICS-NumericalMCQsSingle OptiorisCorrect
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