NEET2010PhysicsWaves and SoundActual
Five sinusoidal waves have the same frequency 500 ~Hz but their amplitudes are in the ratio 2: 1 2 : 1 2 : 1: 1 and their phase angles 0, 6 , 3 , 2 and respectively. The phase angle of resultant wave obtained by the superposition of these five waves is
Options
- A30^
- B45^
- C60^
- D90^
Correct answer
B. 45^
Step-by-step solution
aligned & y₁=2 A t ; y₂= A 2 ( t+ 6 ) & y₃= A 2 ( t+ 3 ) ; y₄=A ( t+ 2 ) & y₅=A ( t+ ) aligned By phasor diagram, = P Q O Q =1 =45^