Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 26: Q17CQ (page 955)

What advantages do oil immersion objectives offer?

Short Answer

Expert verified

The oil immersion objective increases the refractive index of the, and hence we can achieve more NA and therefore a greater resolution.

Step by step solution

01

Definition of refractive index

Refractive Index is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater optical density.

02

Advantages of oil immersion

The numerical aperture (NA) is given by Nsinα. Now with the oil immersion objective, the refractive index of the medium becomes higher, and hence we can achieve more NA and therefore a greater resolution.

Also, the oil in the oil immersion objective is used to match the refractive index of the cover glass and the refractive index of the cover glass, and the refractive index of the objective lens. This reduces the loss of light due to reflection from the interfaces.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A large reflecting telescope has an objective mirror with a 10.0m radius of curvature. What angular magnification does it produce when a 3.00m focal length eyepiece is used?

Propose a way to study the function of the rods alone, given they can sense light about 1000 times dimmer than the cones.

A pure red object on a black background seems to disappear when illuminated with pure green light. Explain why.

Unless otherwise stated, the lens-to-retina distance is 2.00 cm.

(a) The print in many books averages 3.50 mmin height. How high is the image of the print on the retina when the book is held 30.0 cmfrom the eye?

(b) Compare the size of the print to the sizes of rods and cones in the fovea and discuss the possible details observable in the letters. (The eye-brain system can perform better because of interconnections and higher order image processing.)

How does the power of a dry contact lens compare with its power when resting on the tear layer of the eye? Explain.
See all solutions

Recommended explanations on Physics Textbooks

Fluids

Read Explanation

Classical Mechanics

Read Explanation

Electricity and Magnetism

Read Explanation

Rotational Dynamics

Read Explanation

Space Physics

Read Explanation

Atoms and Radioactivity

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free