Question

Use the ray diagram for a lens to answer the question.
focal length
focal length
focus
focus
Which of these best describes the type of lens shown in the ray diagram?
(1 point)
It shows a convex lens. For this type of lens, the image position depends on the object's position relative to the focus point.
It shows a convex lens. For this type of lens, the image is always on the opposite side of the lens as the original object.

Answer 1

It shows a convex lens. For this type of lens, the image is always on the opposite side of the lens as the original object.

Answer 2

What happens to sound waves from an object as it moves toward you? (1 point)
The pitch gets lower because of an increase in wavelength.
The pitch gets higher because of an increase in wavelength.
The pitch gets higher because of an increase in frequency.
The pitch gets lower because of an increase in frequency.

Answer 3

The pitch gets higher because of an increase in frequency.