A) 8 cm
B) 4 cm
C) 16 cm
D) 2 cm
Correct Answer: C
Solution :
\[r=\frac{mv}{Bq}\] \[\Rightarrow \] \[r=\frac{v}{B\frac{q}{m}}=\frac{2\times {{10}^{5}}}{0.05\times 2.5\times {{10}^{7}}}\] \[=\frac{2\times {{10}^{7}}}{12.5\times {{10}^{7}}}=\frac{200}{12.5}\text{cm}\,\text{=}\,\text{16}\,\text{cm}\]You need to login to perform this action.
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