A) \[4\overset{\text{o}}{\mathop{\text{A}}}\,\]
B) \[4nm\]
C) \[16\overset{\text{o}}{\mathop{\text{A}}}\,\]
D) \[16\text{ }nm\]
Correct Answer: C
Solution :
de-Broglie wavelength, \[\lambda =\frac{2\pi {{r}_{n}}}{n}\] \[\therefore \] The circumference of the orbit, \[2\pi {{r}_{n}}=\lambda \times n=4\times 4=16\overset{\text{o}}{\mathop{\text{A}}}\,\]
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