Why is oil immersion necessary when viewing a slide using the 100x objective lens?
A. Oil has a lower refractive index than air, thus allowing light rays to bend more, so we get a sharper image
B. Oil has a higher refractive index than air, thus allowing light rays to bend more, so we get a sharper image
C. Oil has a higher magnification than air, allowing us to achieve 100x magnification
D. The bottom of the objective lens needs to be in contact with the slide through a medium other than air in order for an image to form at this magnification, and since water is not viscous enough, we use oil
Answer:B
Why is oil immersion necessary when viewing a slide using the 100x objective lens?
A. Oil has a lower refractive index than air, thus allowing light rays to bend more, so we get a sharper image B. Oil has a higher refractive index than air, thus allowing light rays to bend more, so we get a sharper image C. Oil has a higher magnification than air, allowing us to achieve 100x magnification D. The bottom of the objective lens needs to be in contact with the slide through a medium other than air in order for an image to form at this magnification, and since water is not viscous enough, we use oil