Start Free Mock LoginAlready registered? Login here

Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

Two waves of the same frequency and same amplitude, on superimposition, produced a resultant disturbance of the same amplitude. The waves differ in phase by

Options:

Answer:

Solution:

Amplitude of resultant wave is

$A^{2} = A_{1}^{2} + A_{2}^{2} + 2 A_{1} A_{2} \cos θ$

Given, $A = A_{1} = A_{2} = a$ (let)

$a^{2} = a^{2} + a^{2} + 2 a^{2} \cos θ$

$\cos θ = - \frac{1}{2}$

$θ = \frac{2 π}{3}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Sound WaveSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...