what is a periscope.....

Asked by  | 26th Aug, 2008, 11:22: PM

Expert Answer:

It is an optical device used to view objects that are above the level of direct sight or are in an obstructed field of vision.It's made up of two mirrors inclined at 45o to the direction being viewed(In a simple form)

Answered by  | 27th Aug, 2008, 12:32: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.