Question
Question: In the figure the intensity of waves arriving at D from two coherent sources s<sub>1</sub> and s<sub...
In the figure the intensity of waves arriving at D from two coherent sources s1 and s2 is I0. The wavelength of the wave is l = 4 m. Resultant intensity at D will be –
A
4I0
B
I0
C
2I0
D
Zero
Answer
2I0
Explanation
Solution
DxD = 5 – 4 = 1 = 4λ
Df = λ2π 4λ = p/2 \ I0 = I0 + I0 + 0 = 2I0