KCET · Physics · Atomic Physics
If the radius of first Bohr orbit is \(r\), then the radius of the second Bohr orbit will be
- A 8 r
- B \(4 r\)
- C \(2 \sqrt{2} r\)
- D \(2 r\)
Answer & Solution
Correct Answer
(B) \(4 r\)
Step-by-step Solution
Detailed explanation
\(\begin{aligned} & \mathrm{r} \alpha \frac{\mathrm{n}^2}{7} \\ & \mathrm{~N}=2 ; \mathrm{r}_2=2^2 \mathrm{r}=4 \mathrm{r}\end{aligned}\)
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