The slit of width `d` is illuminated by light of wavelength `5000 Å`. If Fresnel distance is `2 m`. What is the slit width ?

A slit of width 'd' is illuminated by light of wavelength 5000 Å . For what value od 'd' will the first maximum fall at an angle of diffraction of 30^(@) .

A slit of width a illuminated by red light of wavelength 6500 Å . The first minimum will fall at theta=30^(@) if a is

The slit of width 'b' is illuminated by light of wavelength 6000 Å . For what value of 'b' will be first maximum fall at angle of diffraction of 30^@ ?

A slit of width 'a' is illuminated by a light of wavelength 6000Å . For what value of 'a' will be first maximum fall at an angle of diffraction of 30° ?

A slit of width d is illuminated by red light of wavelength 6500Å For what value of d will the first maximum fall at angle of diffractive of 30^(@)

A slit of width d is illuminated by red light of wavelength 6500Å For what value of d will the first maximum fall atangle of diffractive of 30^(@)

A single slit of width a is illuminated by violet light of wavelength 400nm 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 600nm , the width of the diffraction pattern is

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 be