The diffraction bands observed in the case of straight edge producing diffraction effects areA. equally spaced like the interference bands but with less contrastB. unequally spaced with increasing width as we move away from the edge of geometric shadowC. unequally spaced with decreasing width as we move away from the edge of geometric shadowD. equally spaced like the interference bands but with more contrast

The diffraction bands observed in the case of straight edge producing

1.	The diffraction bands observed in the case of straight edge producing diffraction effects areA. equally spaced like the interference bands but with less contrastB. unequally spaced with increasing width as we move away from the edge of geometric shadowC. unequally spaced with decreasing width as we move away from the edge of geometric shadowD. equally spaced like the interference bands but with more contrast
Answer» Correct Answer - C

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Angular width of central maxima in the Fraunhofer diffraction pattern of a slit is measured. The slit is illuminated by light of wavelength `6000Å`. When the slit is illuminated by light of another wavelength, the angular width decreases by 30%. The wavelength of this light will beA. `3500 Å`B. `4200 Å`C. `4700 Å`D. `6000 Å`
Find the half angular width of the central bright maximum in the fraunhofer diffraction pattern of a slit of width `12xx10^(-5)cm` when the slit is illuminated by monochromatic light of wavelength 6000 Å.
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Light wavelength 6000 Å is incident normally on a slit of width `24xx10^(-5)` cm. find out the angular position of seconds minimum from central maximum?

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