Home/
Competitive Exams/
JEE Main & Advanced/
Physics/
Sound Waves/
Question 31204
JEE Physics · Easy

Sound Waves: Speed of Sound MCQ

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

Timer-based practiceDetailed answer reviewMobile-friendly flow
Speed of SoundEasyQuestion 31204

Question

Speed of sound in a gas is given by:
  1. A
    √(P/ρ)
  2. B
    √(γP/ρ)
    Correct
  3. C
    √(ρ/P)
  4. D
    γP/ρ

Correct answer

√(γP/ρ)

Explanation

Sound propagation is adiabatic. Newton's formula √(P/ρ) underestimates by factor √γ. Laplace corrected it to √(γP/ρ).

Review Sound Waves notesStart timed chapter practice