A) 496 m/s
B) 328 m/s
C) 240 m/s
D) 160 m/s
Correct Answer: B
Solution :
\[\Delta n={{n}_{1}}-{{n}_{2}}\]\[\Rightarrow 4=\frac{v}{2{{l}_{1}}}-\frac{v}{2{{l}_{2}}}\]\[=\frac{v}{2}\left[ \frac{1}{1.00}-\frac{1}{1.025} \right]\] \[\Rightarrow 8=[1-0.975]\]\[\Rightarrow V=\frac{8}{0.025}\approx 328\,m/s.\]You need to login to perform this action.
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