Home/
Competitive Exams/
JEE Main & Advanced/
Physics/
Sound Waves/
Question 31266
JEE Physics · Medium

Sound Waves: Doppler Formula MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Doppler FormulaMediumQuestion 31266

Question

General Doppler formula for sound (both source and observer moving, taking toward positive):
  1. A
    f = f₀(v+v₀)/(v+v_s)
  2. B
    f = f₀(v+v₀)/(v−v_s)
    Correct
  3. C
    f = f₀(v−v₀)/(v+v_s)
  4. D
    f = f₀v₀/v_s

Correct answer

f = f₀(v+v₀)/(v−v_s)

Explanation

General formula: f = f₀(v ± v₀)/(v ∓ v_s). Use + for v₀ toward source, − for v_s toward observer. Sign convention varies; remember the physical meaning.

Review Sound Waves notesStart timed chapter practice