AP EAMCET · PHYSICS · Wave Optics
Two light waves of intensities I and 21 superimpose on each other, If the path difference between the light waves reaching a point is \(12.5 \%\) of the wavelength of the light, then the resultant intensify at the point is (Both the light waves have same wavelength)
- A I
- B 9 I
- C 3 I
- D 5 I
Answer & Solution
Correct Answer
(D) 5 I
Step-by-step Solution
Detailed explanation
For light waves, \(\mathrm{I}_1=\mathrm{I}, \mathrm{I}_2=2 \mathrm{I}, \Delta \mathrm{x}=\frac{12.5}{100} \lambda=\frac{\lambda}{8}\) \(\therefore\) Phase different, \(\phi=\frac{2 \pi}{\lambda} \cdot \Delta x=\frac{2 \pi}{\lambda} \cdot \frac{\lambda}{8}=\frac{\pi}{4}\)…
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