Magnetic Effects Of Current Question 349
Question: The cyclotron frequency of an electron grating in a magnetic field of 1 T is approximately [AIIMS 2004]
Options:
A) 28 MHz
B) 280 MHz
C) 2.8 GHz
D) 28 GHz
Show Answer
Answer:
Correct Answer: D
Solution:
Cyclotron frequency $ v=\frac{Bq}{2\pi m} $
$ \Rightarrow v=\frac{1\times 1.6\times {{10}^{-19}}}{2\times 3.14\times 9.1\times {{10}^{-31}}}=2.79\times 10^{10}H_{z} $ $ =27.9\times 10^{9}HZ\cong \ 28\ GHZ $
BETA
