A _____ is an instrument with the help of which we can see the objects higher than the level of our eyes.

ایک _____ ایسا آلہ ہے جس کی مدد سے ہم اپنی آنکھوں کی سطح سے اونچی چیزوں کو دیکھ سکتے ہیں۔

Periscope

Telescope

Kaleidoscope

None of these

A periscope is used to see objects above the eye level, commonly in submarines or behind obstacles.

It uses mirrors or prisms to reflect light down to the viewer’s eyes.