Refraction and Lenses

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What is the point where the principal axis intersects the lens?

Focal point

Center of curvature

Secondary axis

Optical center (correct)

What is the function of Ray 1 in the ray method of image formation?

To travel parallel to the principal axis

To refract through the secondary axis

To be refracted through the focus (correct)

To pass through the optical center

What is the characteristic of the image formed in a concave lens?

Erect, real, and smaller

Inverted, virtual, and larger

Inverted, real, and larger

Erect, virtual, and smaller (correct)

What is the purpose of Ray 2 in the ray method of image formation?

To refract through the optical center Signup and view all the answers

What is the distance between the focus and the optical center?

Focal length Signup and view all the answers

In the lens formula, what is the variable that represents the object distance?

u Signup and view all the answers

What is the shape of the principal axis?

Straight line Signup and view all the answers

What is the role of the optical center in the lens?

To pass light without refraction Signup and view all the answers

What is the advantage of using the ray method of image formation?

It is a simple and graphical method Signup and view all the answers

What is the characteristic of the image formed by a converging lens?

Always inverted and real Signup and view all the answers

Refraction and Lenses

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Questions and Answers

What is the point where the principal axis intersects the lens?

What is the function of Ray 1 in the ray method of image formation?

What is the characteristic of the image formed in a concave lens?

What is the purpose of Ray 2 in the ray method of image formation?

What is the distance between the focus and the optical center?

In the lens formula, what is the variable that represents the object distance?

What is the shape of the principal axis?

What is the role of the optical center in the lens?

What is the advantage of using the ray method of image formation?

What is the characteristic of the image formed by a converging lens?

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