When the distance between the slit and the screen is doubled,what happens to the angular separation between the fringes in a slit diffraction experiment?

Red light is generally used to observe a diffraction pattern. If green light is used instead of red light,the diffraction pattern will.....

$A$ diffraction pattern is obtained using a beam of red light. If the red light is replaced by blue light,then:

In a single slit diffraction pattern,if the first maxima of light of wavelength $\lambda$ coincides with the first minima of yellow light $(540 \ nm)$,then $\lambda$ is ......... $nm$.

In a single slit diffraction pattern,a light of wavelength $6000 \mathring A$ is used. The distance between the first and third minima in the diffraction pattern is found to be $3 \text{ mm}$ when the screen is placed $50 \text{ cm}$ away from the slit. The width of the slit is . . . . . . $\times 10^{-4} \text{ m}$.

In diffraction,all fringes have .....