1
KCET 2021
MCQ (Single Correct Answer)
+1
-0

In the Young's double slit experiment a monochromatic source of wavelength $$\lambda$$ is used. The intensity of light passing through each slit is $$I_0$$. The intensity of light reaching the screen $$S_C$$ at a point $$P$$, a distance $$x$$ from $$O$$ is given by (Take, $$d<< D$$)

KCET 2021 Physics - Wave Optics Question 1 English

A
$$I_0 \cos ^2\left(\frac{\pi D}{\lambda d} x\right)$$
B
$$4 I_0 \cos ^2\left(\frac{\pi d}{\lambda D} x\right)$$
C
$$I_0 \sin ^2\left(\frac{\pi d}{2 \lambda D} x\right)$$
D
$$4 I_0 \cos \left(\frac{\pi d}{2 \lambda D} x\right)$$
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