What type of lens allows light rays to diverge and is used in flashlights to produce wider beam of light?

What type of lens is used to produce an upright and small image of the object such as the one used in peepholes?

This lens is used in overhead projectors to produce an enlarged image of an object that can be projected on a white screen.

Rita has difficulty seeing objects located at greater distances. What type of lens would you recommend for her use?

Which of the following is INCORRECTLY MATCHED?

Which of these optical instruments utilizes CONVEX lens?

Daniel's grandfather has no difficulty seeing distant objects. However, his eye doctor suggested that he must wear eyeglasses made of convex lens. This means that he has eye defect called ____________________.