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Did periscope use convex or concave mirror?

The basic periscope uses flat mirrors, to bend and offset the optical path. If magnification is required, then the periscope will use convex objective and eyepiece lenses, becoming a refracting telescope with an offset in its optical path.


How does the length of the periscope affect the size of the image seen?

The length of the periscope does not affect the size of the image seen. The size of the image is determined by the mirrors inside the periscope that reflect the light, not the length of the periscope itself.


How does a periscope make light turn corners?

A periscope uses angled mirrors to reflect light at different angles, allowing it to travel around corners. The mirrors inside the periscope are set up to guide the light path from the object at one end to the observer's eye at the other end, creating the illusion that the observer is seeing directly in front of them.


How does a periscope use energy?

A periscope uses energy to function by using mechanical energy to raise and lower the viewing device, and by using optical energy to transmit and reflect light to enable viewing in a different direction than the physical position of the viewer. Electric energy may also be used to power any motorized components in the periscope.


How many mirrors are there in a periscope?

A periscope typically contains two mirrors - one at each end of a hollow tube. The first mirror at the top of the periscope reflects the image into the tube, and the second mirror at the bottom of the periscope reflects the image out to the viewer's eye.