JEE Physics · Hard

Sound Waves: Wave Parameters MCQ

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

Timer-based practiceDetailed answer reviewMobile-friendly flow
Wave ParametersHardQuestion 31219

Question

Bulk modulus of a gas relates to speed of sound by:
  1. A
    v = √(B/ρ)
    Correct
  2. B
    v = B/ρ
  3. C
    v = √(ρ/B)
  4. D
    v = Bρ

Correct answer

v = √(B/ρ)

Explanation

Speed of sound in any medium = √(B/ρ) where B is elastic modulus (bulk modulus for gases). For adiabatic process, B = γP.