In single slit diffraction experiment, a slit of width 'd' is illuminated by light of wavelength 650 nm. For what value of 'd' will be first minimum fall at an angle of `30^@`?

A slt of width a illuminated by mono-chromatic ligth of wavelength 650 nm at normal incidence .Calculate the value of a when the first minimum falls at an angle of diffraction of 30^@ ,

A slt of width a illuminated by mono-chromatic ligth of wavelength 650 nm at normal incidence .Calculate the value of a when the first maximum falls at an angle of diffraction of 30^@ .

In a single slt diffraction experiment,the thrid minimum due to red light of wavelength 720 nm coinciedes with the fourth maximum due to ligth of some unkown wavelength.Find the value of the unkown wavelength.

Angular width of centrl maximum in the Fraunhofer diffraction pattern of a slit is measured.The slit is iluminated by igth of wavelength 6,000 overset@A .When the slit is illuminated by light of another wavelength,the angular width decreases y 30%.Calculate the wavelength of this light. The same decrease in the angular width of centrl maximum is obtained ,when the original appartus is immersed in a liquid.Fin refractive index of the liquid.

In Young's double slit experiment,two slits are separated by 3 mm distance and illuminated by ligth of wavelength 480 nm.The screen is at 2 m from the plane of the slits.Calculate the separtion between the 8th bright finge and the 3rd dark fringe obsrved with respect to the central brigth fringe.

In the Young.s double slit experiment , two slits 0.125mm apart are illuminated by light of wavelength 4500@A . The screen is 1 m away from the plane of the slits. Find the separation between second bright fringes on both sides of central maxima.

In a simple slit diffraction experiment,first minimum of rd light(660 nm) coincides with first maximum of some other wavelength lambda' . Find the value of lambda' .

Answer the following questions: In a single slit diffraction experiment, the width of the slit is made double the original width. How does this affect the size and intensity of the central diffraction band?

If Young's double slit experiment, two slits are illuminated by two light sources of the same wavelength, will you observe interference patterns?

A slit of width d is placed in the path of the beam of wavelength lambda . The angular width of the principle maximum obtained is: