A) 4 : 5
B) 5 : 4
C) 1 : 3
D) 3 : 1
Correct Answer: B
Solution :
In the sum and difference method of vibration magnetometer \[\frac{{{M}_{1}}}{{{M}_{2}}}=\frac{T_{2}^{2}+T_{1}^{2}}{T_{2}^{2}-T_{1}^{2}}\] Here, \[{{T}_{1}}=\frac{1}{{{n}_{1}}}=\frac{1}{6}s\] \[{{T}_{2}}=\frac{1}{{{n}_{2}}}=\frac{1}{2}s\] \[\frac{{{M}_{1}}}{{{M}_{2}}}=\frac{\frac{1}{4}+\frac{1}{36}}{\frac{1}{4}-\frac{1}{36}}=\frac{\frac{9+1}{36}}{\frac{9-1}{36}}\] \[\frac{10}{8}=\frac{5}{4}\] \[{{M}_{1}}:{{M}_{2}}=5:4\]You need to login to perform this action.
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