A student conducts an investigation to determine the focal length of a convex lens. She holds the lens in front of her and looks through it at a distant object. She slowly moves the lens towards her eye. She knows she is holding it a the focal length when the image

What type of lens produces smaller and upright images?

A light ray, traveling parallel to the axis of a convex lens, strikes the lens. What happens to this ray after traveling through the lens?

Sun’s rays are observed to focus at a point behind the fishbowl near the window. The fishbowl act as what type of lens?

A rainbow can be seen in the sky when_____