Four monochromatic and coherent sources of light, emitting waves in phase of wavelength lambda, are placed at the points x = 0, d = 2d and 3d on the x-axis. Then

Four monochromatic and coherent sources of light, emitting waves in ph

1.	Four monochromatic and coherent sources of light, emitting waves in phase of wavelength lambda, are placed at the points x = 0, d = 2d and 3d on the x-axis. Then
Answer» point having `\|X\| gt gt d` appear DARK if `d = lambda//4` point having `\|x\| gt gt d` appear dark if `d = lambda//8` point having `\|x\| gt gt d` appear MAXIMUM BRIGHT dark if `d = lambda//4` point having `\|x\| gt gt d` appear maximum bright dark if `d = lambda//8` ANSWER :A

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Four monochromatic and coherent sources of light, emitting waves in phase of wavelength lambda, are placed at the points x = 0, d = 2d and 3d on the x-axis. Then

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