NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Waves and Sound
NEET · Physics · Waves and Sound
A train is moving towards a stationary observer. Which of the...
A train is moving towards a stationary observer. Which of the following curve best represents, the frequency received by observer as a function of time?







Options
- A

- B

- C

- D

Correct answer
B. 
Step-by-step solution
While approaching but constant.
While receding (\quad f < f_0) but constant.