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

A slit of width a is illuminated by red light of wavelength 650 nm. The first diffraction minimum is observed at an angle theta_(1) = 5.2^(@) from the direction of the incident beam. The width of the slit a in mm is

A slit of width a is illuminated by red light of wavelength 650 nm. The first diffraction minimum is observed at an angle theta_(1) = 5.2^(@) from the direction of the incident beam. The angle theta_(2) at which the second minimum is observed is

A slit of width is illuminated by white light. For red light (lambda=6500Å) , the first minima is obtained at theta=30^@ . Then the value of will be

A slit of width is illuminated by white light. For red light (lambda=6500Å) , the first minima is obtained at theta=30^@ . Then the value of will be

A slit of width a is illuminated by white light. For red light (lambda=6500Å) , the first minima is obtained at theta=30^@ . Then the value of a will be

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 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 'a' is illuminated by red light of wavelenght 6500 Å . For what value of 'a' will the (i) first minimum fall at an angle of diffraction of 30^(@) ? (ii) first maximum fall at an angle of diffraction of 30^(@) ?