" A sit of width a is illuminated by white light for red light "(lambda=6500A^(@))" the first minima is obta "

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 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 what value of a does the first minimum for red light of wavelength 650 nm fall at angle of diffraction theta=15^(@) ?

A slit of width a is illuminated by white light. (a) For what value of a will the first minimum for red light of wavelength lambda = 650 nm appear at theta= 15^(@) ?

A slit of width d is illuminated by white light. For what value of d is the first minimum for red light of lambda = 650 nm , located at point P at 30^(@) . For what value of the wavelength of light will the first diffraction maxima also fall at P ?