Diffraction patterns are due to: interference refraction dispersion scattering

Diffraction pattern are due to interference.

Explanation:

Diffraction patterns are due to interference. Diffraction is the process of bending of light when it reaches the obstacle. A diffraction pattern is formed at the screen in which there are some bright and dark band.

Diffraction can be done using single slit, diffraction grating and double silt. Hence, the correct option is (a) "interference ".

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

i don't understand. explain it clearly