Light bends when it changes the medium because the dielectric permittivity of the material makes the path more hard to penetrate

c)as speed changes, wavelength and frequency change.

everything changes!

this means that the temperature of both substances will be equal

i will answer your question if you answer mine

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation