Which instrument uses two or more lenses to magnify objects?

Which instrument uses two or more lenses to magnify objects?

• A. Simple microscope
• B. Binoculars
• C. Compound microscope
• D. Periscope

Answer: (C)

The correct choice is the compound microscope, which utilizes a system of two or more lenses to achieve magnification of small objects. This design incorporates an objective lens and an eyepiece lens, each serving a specific purpose in the imaging process. The objective lens, located near the specimen, captures and focuses light from the object, creating a magnified image that is then further enlarged by the eyepiece lens for the viewer. This configuration allows for higher magnification and resolution than what a single lens system could achieve, making it ideal for observing microscopic details in biological specimens and other tiny entities. Other instruments like the simple microscope primarily use a single lens for magnification, thus limiting its capabilities compared to the compound microscope. Binoculars also employ a system of lenses but are specifically designed for viewing distant objects, which is a different application of lens use. Periscopes utilize mirrors and occasionally lenses to provide a view from an obstructed line of sight, rather than focusing on magnification for close-up viewing. This distinctive multi-lens setup in compound microscopes is what differentiates them in terms of functionality and application in the field of optics.

The correct choice is the compound microscope, which utilizes a system of two or more lenses to achieve magnification of small objects. This design incorporates an objective lens and an eyepiece lens, each serving a specific purpose in the imaging process. The objective lens, located near the specimen, captures and focuses light from the object, creating a magnified image that is then further enlarged by the eyepiece lens for the viewer. This configuration allows for higher magnification and resolution than what a single lens system could achieve, making it ideal for observing microscopic details in biological specimens and other tiny entities.

Other instruments like the simple microscope primarily use a single lens for magnification, thus limiting its capabilities compared to the compound microscope. Binoculars also employ a system of lenses but are specifically designed for viewing distant objects, which is a different application of lens use. Periscopes utilize mirrors and occasionally lenses to provide a view from an obstructed line of sight, rather than focusing on magnification for close-up viewing. This distinctive multi-lens setup in compound microscopes is what differentiates them in terms of functionality and application in the field of optics.