Question
In an atom, the two electrons move round the nucleus in circular orbits of radii R and 4R. The ratio of the time taken by them to complete one revolution is
Answer: Option D
:
D
Time period T∝n3Z2
For a given atom (Z = constant) So T∝n3 ......... (i) and radius R∝n2 ......... (ii)
∴ From equation (i) and (ii) T∝R3/2⇒T1T2=(R1R2)3/2=(R4R)3/2=18
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:
D
Time period T∝n3Z2
For a given atom (Z = constant) So T∝n3 ......... (i) and radius R∝n2 ......... (ii)
∴ From equation (i) and (ii) T∝R3/2⇒T1T2=(R1R2)3/2=(R4R)3/2=18
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