7. 5
List the sign conventions that are followed in case of refraction of
light through spherical lenses. Draw a diagram and apply these
conventions in determining the nature and focal length of a
spherical lens which forms three times magnified real image of an
object placed 16 cm from the lens.​

nah.   i'm just sleepy.

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

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray