When light passes from one medium to another, it undergoes reflection and refraction. label the rays in the image as reflection and and refraction.

The bent arrow stands for reflection.

The bend road image stands for refraction

Explanation:

Reflection is the phenomenon where there is bouncing back of light from a shiny surface.

The first arrow as it can be observed, leads light rays to the surface of the glass and bounces them back.

Refraction is the changing direction of light rays.

The second image bends upon reaching the surface and changes its direction, therefore this phenomenon shall be referred to as refraction.

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.