Compound microscope

The video tutorial explains the use of lenses, specifically the objective and eyepiece, in microscopes to gather and magnify light. It highlights the historical significance of single-lens observations and the enhanced magnification achieved with both lenses. For viewing even smaller structures, the video introduces the electron microscope.

What are the two main types of lenses used in microscopes to gather and magnify light?

• Zoom and focus

• Primary and secondary

• Convex and concave

• Objective and eyepiece

What was the significant advancement in microscopy that allowed for higher magnifications?

• Using a single lens

• Combining the objective and eyepiece

• Introducing digital imaging

• Using polarized light

What is the maximum magnification typically achievable with a combination of objective and eyepiece lenses?

• 2000 times

• 500 times

• 1000 times

• 1500 times

Why are electron microscopes necessary for viewing certain structures?

• They are cheaper to use

• They can view smaller structures than optical microscopes

• They provide color images

• They are easier to operate

Which type of microscope is required to see structures smaller than those visible with optical microscopes?

• Digital microscope

• Electron microscope

• Stereo microscope

• Compound microscope