Question

The beats are produced by two sound sources of same amplitude and of nearly equal frequencies. The maximum intensity of beats will be ...... that of one source

• A. Same
• B. Double
• C. Four times
• D. Eight times

Answer 1

Answer: (C)

Four times

Answer 2

Intensity ∝ (amplitude)²

as ${Ao}_{\max}$ (a_o= amplitude of one source)

so ${Io}_{\max}$.