in this chapter it was told that light travels in stright line but for submarines have a curved tube to see things how is that possible ? how light travel in curved tube ?
Dear Student,
Submarines use periscope to see the things. They have mirrors placed at certain angle which bend the light at angles but the path in between remains straight.
Submarines use periscope to see the things. They have mirrors placed at certain angle which bend the light at angles but the path in between remains straight.