Question

explain the construction of periscope.​

Answer 1

Explanation:

Periscopes can be constructed using a pair of flat mirrors or prisms and a rectangular hollow tube that has a viewing window at the top and bottom of the tube. The mirrors within this structure are fixed at an angle of 45o at the two ends of the rectangular hollow.

Answer 2

Answer:

Theory

A periscope is an optical instrument that uses a system of prisms, lenses, or mirrors to reflect images through a tube. Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube. At the bottom of the periscope, the light strikes another mirror and is then reflected into the viewer's eye. This simple periscope uses only flat mirrors as compared to the periscopes used on submarines, which are usually a complex optical system using both lenses and mirrors.

Explanation:

Materials

1. 2 flat mirrors

2. a cardboard tube with openings on each end

3. wooden supports

4. tape

Procedure

Insert both flat mirrors into the periscope viewing tube as shown. The mirrors must be facing each other. When the mirrors are inserted correctly each mirror will be resting on the wooden supports. As each mirror is inserted, place a small piece of Scotch tape over the mirror slots on the outside of the viewing tube. Hold the periscope so the mirrors are resting on the wooden supports, then look through it.

NOTE: The mirrors will fall out if you turn your periscope upside down.