Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
64 views
in Physics by (91.1k points)
closed by
A small source of sound moves on a circle as shown in figure and an observer is sitting at O. Let `v_1,v_2,v_3` be the frequencies heard when the source is at A,B and C respectively.
image.
A. `n_(1)gtn_(2)gtn_(3)`
B. `n_(2)gtn_(3)gtn_(1)`
C. `n_(1)=n_(2)=n_(3)`
D. `n_(2)gtn_(1)gtn_(3)`

1 Answer

0 votes
by (91.6k points)
selected by
 
Best answer
Correct Answer - B
At point `A`, source is moving away from observer so apparent frequency `n_1 lt n` (actual frequency) At point `B` source is coming towards observer so apparent frequency `n_2 gt n` and point C source is moving perpendicular to observer so `n_3=n`.
Hence `n_2 lt n_3 gt n_1`.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...