Question

What are the uses of objective lenses in the microscope?

Answer 1

Hint: A microscope is a laboratory instrument that is used to examine objects that are too small for the naked eye to see. Microscopy is the science of using a microscope to study small objects and structures. Unless aided by a microscope, microscopic means invisible to the naked eye.

Complete step by step solution:
Microscopes come in a variety of shapes and sizes, and they can be classified in a variety of ways. One method is to describe how an instrument interacts with a sample and produces images, such as sending a beam of light or electrons through a sample in its optical path, detecting photon emissions from a sample, or scanning across and a short distance from the surface of a sample with a probe.
The optical microscope, which uses lenses to refract visible light that passes through a thinly sectioned sample to produce an observable image, is the most common (and the first to be invented). Fluorescence microscopes, electron microscopes (both transmission electron microscopes and scanning electron microscopes), and various types of microscopes are other major types of microscopes.
An objective lens is the most important optical unit that determines the basic performance/function of an optical microscope A wide variety of objective lenses are available depending on the purpose to provide optimal optical performance/function for various needs and applications (i.e. the most important performance/function for an optical microscope).
The light rays converge at a point when they pass through a convex lens, making it a converging lens. As a result, they are used in applications where a sharp focus on the object is required, and they are thus used as the microscope's objective lens. To magnify an object and project a larger image, the objective lens is made up of several lenses. Object lenses can be used for a variety of purposes.

Note:
The lens at the front end of a refracting telescope (such as binoculars or telescopic sights) or the image-forming primary mirror of a reflecting or catadioptric telescope is the objective in a telescope. The diameter (or "aperture") of a telescope's objective lens or mirror determines its light-gathering power and angular resolution.