A) \[{{10}^{7}}Hz\]
B) \[{{10}^{5}}Hz\]
C) \[{{10}^{6}}Hz\]
D) \[{{10}^{4}}Hz\]
Correct Answer: D
Solution :
Cyclotron frequency is given by \[v=\frac{qB}{2\pi m}\] \[\therefore \] \[v=\frac{1.6\times {{10}^{-19}}\times 6.28\times {{10}^{-4}}}{2\times 3.14\times 1.7\times {{10}^{-27}}}\] \[=0.94\times {{10}^{4}}\] \[\approx {{10}^{4}}Hz\]
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