AP EAMCET202317 May 2023Morning ShiftPhysicsWave OpticsActual
Two coherent light sources having intensity in the ratio 2 x produce an interference pattern. Then the value of I_ -I_ I_ +I_ will be
Options
- A2 2 x x+1
- B2 x 2 x+1
- C2 2 x 2 x+1
- D2 x x+1
Correct answer
C. 2 2 x 2 x+1
Step-by-step solution
aligned & I₁ I₂ =2 x & I_ = ( I₁ + I₂ )^2 & I_ = ( I₁ - I₂ )^2 & I_ -I_ I_ +I_ = ( I₁ + I₂ )^2- ( I₁ - I₂ )^2 ( I₁ + I₂ )^2+ ( I₁ - I₂ )^2 & = 4 I₁ I₂ 2 (I₁+I₂ ) = 2 I₁ I₂ I₁ I₂ +1 = 2 2 x 2 x+1 aligned