Which component is used with a telescope to enable near tasks and is worn on the head?

• A. Reading cap
• B. Eyepiece
• C. Prism
• D. Occluder

Answer: (A)

The reading cap is the head-worn option that provides near-task magnification. It sits on the head (often on a cap or headband) and offers magnification for close work like reading or threading a needle, allowing you to use it alongside a telescope for tasks at near distances. The eyepiece is simply the viewing lens you look through and isn’t worn on the head; a prism changes image orientation inside the device, not something worn on the head; and an occluder is used to cover an eye for patching or testing, not for near viewing. So for doing near tasks while wearing a telescope, the head-worn magnifier—the reading cap—is the appropriate accessory.