Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

Ray Diagrams for Concave and Convex Lenses

18 Questions

3 Views

Ray Diagrams for Concave and Convex Lenses

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the sign convention for the object distance (BO) in lens formula calculations?

-u (correct)

-v

Which type of lenses is the thin lens formula valid for?

Both concave and convex lenses (correct)

Convex lenses only

Only concave lenses

Double-convex lenses

What are the two foci of a double convex or concave lens?

F1 and F'

F1 and F2

F and F2

F and F' (correct)

Which is the first focal point in a double-convex or concave lens?

F Signup and view all the answers

In image formation by a lens, what happens to a ray of light passing through the first principal focus of a convex lens?

It emerges parallel to the principal axis after refraction Signup and view all the answers

What is the principle used to find the image of an object by a lens?

Laws of Refraction Signup and view all the answers

What happens to a ray of light incident on a concave lens that appears to meet the principal axis at the second focus point?

It emerges parallel to the principal axis after refraction. Signup and view all the answers

What is the magnification (m) defined as for a lens?

The ratio of the size of the image to that of the object. Signup and view all the answers

In what cases is the magnification (m) positive for an image formed by a convex or concave lens?

For an erect (and virtual) image. Signup and view all the answers

What is the first step in calculating the refractive index of a liquid given a glass lens with a refractive index of 1.47 disappears in that liquid?

Verify that n1 = n2 for the lens and liquid. Signup and view all the answers

What does it mean if the focal length (f) of a lens equals infinity?

The lens does not refract light. Signup and view all the answers

How does a double-convex lens differ from a double-concave lens?

A double-convex lens converges light while a double-concave lens diverges light. Signup and view all the answers

What is the formula for the combined focal length of multiple thin lenses in contact?

$\frac{1}{f} = \frac{1}{f_1} + \frac{1}{f_2} + \frac{1}{f_3} + ...$ Signup and view all the answers

What happens to the net power in a lens combination if there are both convex and concave lenses involved?

The net power can be a mix of positive and negative values Signup and view all the answers

What does the effective focal length of a double-convex lens depend on?

The curvature of both surfaces of the lens Signup and view all the answers

In a compound microscope, how does the image formed by the first lens contribute to the second lens?

It becomes the object for the second lens Signup and view all the answers

What assumption is made about the optical centers of thin lenses in contact?

They are coincident or overlapping Signup and view all the answers

How does a prism affect light passing through it?

It disperses light into its constituent colors Signup and view all the answers