A single slit of width d is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as ' Y '. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm , the wi

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A single slit of width d is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as ' Y '. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm , the width of the diffraction pattern is

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Correct answer: C. 3 Y

Width of diffraction pattern, W = 2 D ~d When half the slit is covered, d ^ = d 2 and ^ =600 ~nm array ll & W ^ = 2 ^ d / 2 & ~W ^ W = 2 ^ = 2 600 400 & ~W ^ W =3 & ~W ^ =3 ~W =3 Y array ...(given, W = Y )

A single slit of width d is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as ' Y '. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm , the width of the diffraction pattern is

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