Ans. Telescopes and microscopes are both optical instruments, but they have different purposes. Telescopes are designed to magnify distant objects, such as stars and planets, allowing us to observe them in more detail. Microscopes, on the other hand, are used to magnify small objects, such as cells or microorganisms, enabling us to see them clearly. While telescopes have a longer focal length, microscopes have a shorter focal length to focus on nearby objects.