A) \[\frac{9}{10}\]
B) \[\frac{11}{10}\]
C) \[\frac{10}{11}\]
D) \[\frac{10}{9}\]
Correct Answer: D
Solution :
From the relation, \[f={{f}_{0}}\left[ \frac{{{v}_{sound}}-{{v}_{observer}}}{{{v}_{sound}}-{{v}_{source}}} \right]\] \[{{v}_{observer}}=0\], because observer is stationary, \[\Rightarrow \] \[f={{f}_{0}}\left[ \frac{v}{v-\frac{v}{10}} \right]={{f}_{0}}\left[ \frac{1}{\frac{9}{10}} \right]\] \[\Rightarrow \] \[\frac{f}{{{f}_{0}}}=\frac{10}{9}\]
You need to login to perform this action.
You will be redirected in
3 sec
