Thin Lens Equation

Where can you place an object in order to get a real image? Select all that apply.

• beyond 2F

• at 2F

• between F & 2F

• at F

• between F and the lens

Where can you place an object in order to get a smaller image than the object? Select all that apply.

• beyond 2F

• at 2F

• between F & 2F

• at F

• between F and the lens

Where can you place an object in order to get an image of the same size as the object? Select all that apply.

• beyond 2F

• at 2F

• between F & 2F

• at F

• between F and the lens

An object is placed in each of these 5 locations in front of a convex lens. Which will give an inverted, real image? (select all that apply)

• Beyond 2F (pretty far away)

• At 2F

• Between F and 2F

• At F (the focal point)

• Between F and the lens (very close)

An object is placed in each of these 5 locations in front of a convex lens. Which will not produce an image? (select all that apply)

• Beyond 2F (pretty far away)

• At 2F

• Between F and 2F

• At F (the focal point)

• Between F and the lens (very close)

A converging lens produces an image twice the size of the original. The object is placed 0.40 m from the lens, and the image is produced 0.80 m from the lens.

What does the 0.40 m represent?

• do

• di

• f

• 1/f

A tree is located 40 m from the converging lens of focal length 0.08 m. What does the 0.08 m represent?

• do

• di

• f

• 1/f

This image is.....

• inverted and smaller

• inverted and larger

• not inverted and smaller

• not inverted and larger

What is the thin lens equation?

If an object is placed at the focal point of a converging lens, what type of image is formed?

• No image is formed

• A real, inverted image

• A virtual, upright image

• A real, upright image