A) \[\frac{1}{200}\]
B) \[\frac{1}{800}\]
C) \[\frac{1}{6400}\]
D) \[\frac{1}{3200}\]
Correct Answer: B
Solution :
Ratio of time of expoiusers \[\frac{{{t}_{1}}}{{{t}_{2}}}={{\left( \frac{{{f}_{1}}}{{{f}_{2}}} \right)}^{2}}={{\left( \frac{5f}{2.5f} \right)}^{2}}\] \[\Rightarrow \] \[\frac{1/200}{{{t}_{2}}}={{(2)}^{2}}\] \[\Rightarrow \] \[{{t}_{2}}=\frac{1}{800}s\]You need to login to perform this action.
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