Answer:
Full course meals are made up of three courses: an appetizer, main dish, and dessert. Also known as a three-course meal or a standard course meal, you will sometimes see restaurants offering a full menu with these three items. You can add more courses to a full course meal.
Explanation:
Scientists who use principles to develop new technology work in the field of applied science

An image is formed due to reflection of light by a plane mirror. In a completely dark room there is no light so no image will be formed by the mirror placed in the room. Hence we will not be able to see our image in a mirror placed in a completely dark room.