A) 0.8 T
B) 1.6 T
C) 2.0 T
D) 3.2 T
Correct Answer: A
Solution :
The cyclotron frequency, \[v=\frac{qB}{2\pi m}\] Magnetic field \[B=\frac{2\pi mv}{q}\] \[B=\frac{2\times 3.14\times 1.67\times {{10}^{-27}}\times 12\times {{10}^{6}}}{1.6\times {{10}^{-19}}}\] \[=78.6\times {{10}^{-2}}T\] B = 0.8 T (approximately)
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