lab 04 Virtual Microscopy (Questions with 100% correct answers)

Arm correct answers It is the area of the microscope between the tube and the base. Base correct answers It is the bottom support structure of the microscope. Body correct answers It is the main section of the microscope minus the base or light sources. Coarse Focus correct answers The larger of two adjustment knobs that moves the objective lens closer to, or farther from, the specimen in large steps. Diaphragm correct answers It controls how much light passes through to help properly illuminate the specimen, while also increasing contrast and resolution. Eyepiece correct answers Also known as the ocular lens which presents the image of the specimen when you look through. It typically magnifies the image 10X larger. Fine Focus correct answers The smaller of two adjustment knobs moves the objective lens closer to, or farther from, the specimen in very small steps. It is used to fine tune the focus on various parts of a specimen after first using the Coarse Focus to get close. Nose Piece correct answers Also called a revolving nose-piece which holds the objective lenses. Objective Lenses correct answers These lenses has powers ranging from 4X (Scanning), 10X (Lower Power), 40X (High Power), & 100X (Oil Immersion). These are used in conjunction with the eyepiece to view the specimen. On/Off Switch correct answers It controls the power to the microscope. What is the typical magnification of the eyepiece (also called ocular) lens? correct answers 10X 4X correct answers scanning, red, 40x 10x correct answers low power, yellow 40x correct answers high power, blue 100x correct answers oil immersion, white How should you handle a microscope when moving and setting it up? correct answers Remove the microscope from the cabinet by gripping the arm firmly with one hand while placing the other hand underneath the base for support like a baby. Do not removed the dust cover until the microscope is placed and positioned on the table.Never touch the lens with fingers.