A) \[{{n}_{1}}>{{n}_{2}}>{{n}_{3}}\]
B) \[{{n}_{2}}>{{n}_{3}}>{{n}_{1}}\]
C) \[{{n}_{1}}={{n}_{2}}>{{n}_{3}}\]
D) \[{{n}_{2}}>{{n}_{1}}>{{n}_{3}}\]
Correct Answer: B
Solution :
At point A, source is moving away from observer so apparent frequency \[{{n}_{1}}<n\] (actual frequency) At point B source is coming towards observer so apparent frequency \[{{n}_{2}}>n\] and point C source is moving perpendicular to observer so \[{{n}_{3}}=n\] Hence \[{{n}_{2}}>{{n}_{3}}>{{n}_{1}}\]You need to login to perform this action.
You will be redirected in
3 sec