Light of wavelength lambda = 500 nm falls on two narrow slits placed a distance d = 50 xx 10^(-4) cm apart, at an angle phi = 30^(@) relative to the slits shown in figure. In front of the lower slit, a slab of thickness 0.1 mmand refractive index 3/2 is placed. The interference pattern is observed on a screen at a distance D = 2m from the slits S_(1)O = S_(2)O = d//2 The position of central maxima is at an angular position 'theta' with line OB

Light of wavelength lambda = 500 nm falls on two narrow slits placed a

1.	Light of wavelength lambda = 500 nm falls on two narrow slits placed a distance d = 50 xx 10^(-4) cm apart, at an angle phi = 30^(@) relative to the slits shown in figure. In front of the lower slit, a slab of thickness 0.1 mmand refractive index 3/2 is placed. The interference pattern is observed on a screen at a distance D = 2m from the slits S_(1)O = S_(2)O = d//2 The position of central maxima is at an angular position 'theta' with line OB
Answer» `30^(@)` above OB `45^(@)` above OB `45^(@)` above OB `30^(@)` below OB Answer :D

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